TechSurge: Deep Tech Podcast

TechSurge: Deep Tech Podcast

By Celesta Capital | Deep Tech Venture Capital FirmBusinessTechnologyInvesting
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TechSurge: Deep Tech Podcast episodes

  • Gaming Chip Pioneer Raja Koduri on China's AI Cost Advantage and Moving Beyond the GPU

    In this episode, host David Goldman speaks with legendary graphics chip architect Raja Koduri, who explains why every gigawatt of AI infrastructure now costs $50 to $60 billion, and why China's goal of doing it for under $10 billion is the real threat to Western AI. Raja twice led graphics at AMD, directed Apple's graphics architecture and was chief architect at Intel. He argues that the real AI race isn't Nvidia vs. Google vs. Broadcom but China vs. the rest of the world, and that the new bottleneck isn't compute. It's memory.


    In this conversation, Raja joins TechSurge to talk about his new startup Oxmiq, which aims to turn "electrons to tokens super efficiently." He covers how 3D-stacked, hybrid-bonded memory could deliver 10x the bandwidth of today's HBM, why AI agents are changing how chips get designed, and why he thinks the next disruption to AI data centers "comes from the bottom."

    The conversation covers:

    ✅ Why every gigawatt of AI infrastructure costs $50 to $60 billion, and where the $45 billion in hardware spend goes

    ✅ The $24 trillion capital question: 400+ gigawatts of new compute needed by 2030

    ✅ How China's under-$10 billion per gigawatt target creates a 5 to 6x cost gap

    ✅ Why memory hierarchy, not raw compute, is now the real bottleneck in AI

    ✅ How advanced packaging can unlock 10x bandwidth and 10x token generation, even on older 7nm nodes

    ✅ Why OpenAI's Jalapeño chip shows that AI can speed up silicon design

    ✅ Why the value of experienced engineers has gone up 100x in the age of AI coding agents

    ✅ Leadership lessons from Steve Jobs at Apple and Lisa Su at AMD

    ✅ Why Intel's decision to kill 3D XPoint memory came at "the wrong time"

    ✅ Boom or bust: the financial engineering risk behind the AI infrastructure buildout

    ✅ Token factories vs. token banks: why "the more boring you make it, the more it becomes fabulous"

    Guest Links:

    Raja Koduri: Founder of Oxmiq.

    LinkedIn: https://www.linkedin.com/in/raja-koduri-3a51611
    X: https://x.com/RajaXg
    Oxmiq: https://oxmiq.ai 


    Further Reading and Resources


    OpenAI and Broadcom announcement: https://openai.com/index/openai-broadcom-jalapeno-inference-chip/

    High Bandwidth Memory (HBM): The memory technology Raja's AMD team helped bring to market with HBM1 and HBM2, and the benchmark Oxmiq's 3D-stacked approach aims to beat by 10x. https://en.wikipedia.org/wiki/High_Bandwidth_Memory 

    Intel 3D XPoint (Optane): The discontinued memory technology Raja says could have made Intel a major player in the inference era. https://en.wikipedia.org/wiki/3D_XPoint 

    Chapters

    00:00 - A Gigawatt of AI Now Costs $60 Billion

    01:58 - Introducing Raja Koduri

    02:02 - What Oxmiq Builds: Electrons In, Tokens Out

    05:18 - The $24 Trillion AI Infrastructure Bill

    06:05 - China vs. the Rest of the World

    09:10 - Memory Is the New Bottleneck

    22:03 - How AI Agents Are Changing Chip Design

    36:30 - Lessons From Steve Jobs and Lisa Su

    44:54 - Advanced Packaging, Memory Prices, and Intel's Mistake

    55:38 - Boom or Bust: The Future of Token Factories


    About TechSurge:


    TechSurge Podcast shares the latest insights directly from legendary Silicon Valley leaders, daring new founders, and visionary technologists.

    🔔 Subscribe for weekly conversations at the intersection of technology advancement, market dynamics, and founder journeys.


    1 hr 1 min
  • The Race to Build the Next Trillion-Dollar AI Chip Company

    Almost 2% of U.S. GDP will be spent on AI infrastructure this year, nearly double 2025's figure. But beneath those headline numbers, the composition of that spending has quietly flipped: for the first time, dollars spent on running models in production now outweigh dollars spent training them.

     

    In this episode of TechSurge, host David Goldman speaks with Austin Lyons, a semiconductor analyst at Creative Strategies, co-host of the Semi Doped podcast, and author of the Chipstrat newsletter. Lyons previously worked as a hardware engineer at Intel and as a product manager on John Deere's autonomous tractor and Blue River Technology teams before turning to full-time chip industry analysis.

     

    The conversation opens with why AI buyers have moved from assembling commoditized parts to buying entire pre-integrated systems, tracing how Nvidia's rack-scale approach, exemplified by its 72-GPU Grace Blackwell racks, made turnkey deployment the default, and why that raises the bar for any chip startup trying to compete. Lyons and Goldman then unpack how inference workloads have split into two distinct problems, prefill and decode, and how that split created an opening for SRAM-based challengers to outperform general-purpose GPUs on decode speed.

     

    From there, the discussion turns to the rise of neoclouds, the GPU-rental companies that grew into public businesses worth well over $100 billion combined, and why so many traditional investors missed them. Lyons and Goldman work through the circular financing debate head-on: the mechanics of Nvidia's equity stakes, GPU-backed debt, and hyperscaler off-take agreements that critics compare to dot-com-era vendor financing, and the counterargument that demand is simply outrunning fixed supply.

     

    The episode closes on Lyons's own framework for identifying the next trillion-dollar chip company, built on four conditions including the ability to run trillion-parameter models at rack scale, beat an incumbent on a key performance metric, and land a frontier anchor customer, along with a look at how AI-assisted chip design is lowering the barrier for more companies, from OpenAI to electric vehicle makers, to design their own custom silicon.

     

    Sign up for our newsletter at techsurgepodcast.com for updates on upcoming TechSurge Live Summits and future episodes.

     

    Speaker Profiles and Links

     

    David Goldman: Partner, Celesta Capital

     

    Austin Lyons: Senior Analyst, Creative Strategies; Founder, Chipstrat; Co-host, Semi Doped

    LinkedIn: https://www.linkedin.com/in/austinlyons/

    Newsletter: https://www.chipstrat.com

     

    Further Reading and Resources

     

    Nvidia DGX GB Rack Scale Systems documentation: https://docs.nvidia.com/dgx/dgxgb200-user-guide/

    OpenAI and Broadcom – "OpenAI and Broadcom Unveil LLM-Optimized Inference Chip": https://openai.com/index/openai-broadcom-jalapeno-inference-chip/

    Chipstrat – Austin Lyons's newsletter: https://www.chipstrat.com
    Semi-doped: https://semidoped.com/

     

    Timestamps

     

    00:00 — No One's Brought a Chip to Market Built for LLMs

    01:21 — Introducing Austin Lyons

    02:16 — Why AI Buyers Now Buy Whole Systems, Not Parts

    08:18 — Nvidia's Margins and the Case for System Simplicity

    10:10 — Can a Startup Compete When You Have to Sell Systems?

    14:12 — Prefill vs. Decode: Splitting the Inference Workload

    24:51 — Fragmentation vs. Consolidation in AI Silicon

    28:22 — Why Investors Missed the First Wave of Neoclouds

    38:18 — The Circular Financing Debate

    48:29 — Lyons's Four Conditions for the Next Trillion-Dollar Chip Company

     

     About TechSurge:

    TechSurge Podcast shares the latest insights directly from legendary Silicon Valley leaders,
    daring new founders, and visionary technologists.
    Subscribe for weekly conversations into the intersection of technology advancement, market dynamics, and founder journeys.

    #AISilicon #LLMHardware #Nvidia #AIInference #TechPodcasts #AIInfrastructure

    1 hr 13 min
  • The Nobel Winner Behind Google's Quantum AI Lab: Why I'm Building the NVIDIA of Quantum

    In this episode, Nobel Prize-winning physicist Dr. John Martinis reveals how his breakthrough in superconducting qubits made quantum physics real at macroscopic scale and what it means for the future of technology. The former lead of Google's Quantum AI lab explains why quantum computing is so fragile, why a lot of hype has a low chance to work, and why his fabless company Qolab could be the Nvidia of quantum computing

    In this conversation, Dr. Martinis joins TechSurge to explain the science behind macroscopic quantum coherence, the engineering challenges of scaling quantum computers, and how hybrid quantum-classical computing will shape the future of technology.

    The conversation covers:

    ✅ How the superconducting qubit breakthrough won the Nobel Prize in Physics
    ✅ Why Nature wants to destroy quantum coherence and why quantum is fragile
    ✅ From academic physics to building Google's quantum computer
    ✅ The engineering challenge of scaling quantum computing beyond the lab
    ✅ Why a lot of quantum computing hype has a low chance to work
    ✅ How Qolab's fabless model could scale quantum hardware

    Guest Links:

    John Martinis: 2025 Nobel Prize laureate in Physics, superconducting-qubit pioneer, former
    Google quantum-hardware researcher, and founder and CTO of Qolab.
    Nobel Prize profile: https://www.nobelprize.org/prizes/physics/2025/martinis/
    Qolab: https://qolab.ai/

    Further Reading and Resources

    Google Sycamore Quantum Processor - Google’s 2019 experiment used a 53-qubit
    superconducting processor to perform a specific random-circuit-sampling task substantially
    faster than the then-known classical approach.

    Nature research paper:
    https://www.nature.com/articles/s41586-019-1666-5

    Google Research explanation:
    https://research.google/blog/quantum-supremacy-using-a-programmable-superconducting-processor/

    Artificial Intelligence and Transformers – The Transformer architecture discussed in the
    podcast was introduced in the paper “Attention Is All You Need.”

    Original paper:
    https://arxiv.org/abs/1706.03762

    AlphaFold and Protein Structure Prediction – AlphaFold demonstrated how classical AI can
    predict protein structures with high accuracy, illustrating the distinction between present-day AI
    and potential future quantum applications.

    Nature paper:
    https://www.nature.com/articles/s41586-021-03819-2

    Google DeepMind – AlphaFold:
    https://deepmind.google/science/alphafold/

    Quantum Computing Hardware Approaches – The podcast compares superconducting
    qubits, semiconductor spin qubits, neutral atoms, trapped ions and photonic systems.

    Google Quantum AI:
    https://quantumai.google/

    Intel Quantum Computing:
    https://www.intel.com/content/www/us/en/research/quantum-computing.html

    QuEra – Neutral-atom quantum computing:
    https://www.quera.com/

    Atom Computing:
    https://atom-computing.com/

    Quantum Manufacturing and Scaling – Qolab is focused on improving the fabrication, wiring and scalability of superconducting quantum processors through industrial partnerships.

    Qolab:
    https://qolab.ai/

    Qolab and Applied Materials collaboration:
    https://thequantuminsider.com/2025/03/18/qolab-secures-investment-from-applied-ventures-and-announces-collaboration-to-advance-quantum-computing-manufacturing/

    Applied Materials:
    https://www.appliedmaterials.com/

    Quantum–Optical Networking – The podcast discusses the challenge of converting
    microwave signals used by superconducting qubits into optical signals suitable for fiber-optic communication.

    Microwave-to-optical conversion research:
    https://www.nature.com/articles/s41567-019-0650-1

    Chapters:

    00:00 – The Quantum Computing Hype: Physics vs Engineering
    04:06 – Introducing Nobel Prize Winner John Martinis
    12:09 – Schrödinger's Cat Explained
    13:12 – Can Quantum Effects Exist at a Macroscopic Scale?
    17:45 – The Experiment That Changed Quantum Computing
    34:33 – The Biggest Challenge: Scaling Quantum Computers
    43:21 – John Martinis on Google's Quantum Supremacy
    45:51 – AI vs Quantum Computing
    01:01:45 – Can Quantum and Classical Computers Work Together?
    01:07:36 – The NVIDIA Model for Quantum Computing

    About TechSurge:

    TechSurge Podcast shares the latest insights directly from legendary Silicon Valley leaders,
    daring new founders, and visionary technologists.
    Subscribe for weekly conversations into the intersection of technology advancement, market dynamics, and founder journeys.

    #quantumcomputing #quantumphysics #nobelprize #technology

    1 hr 10 min
  • Intel CEO Lip-Bu Tan on 40 Years of Contrarian Bets in Semiconductors


    Silicon Valley was built on semiconductors, but for nearly two decades, venture capital shifted its attention towards software. Today, AI is changing that as the demand for compute, memory and networking explodes, hardware is once again at the centre of the industry's biggest bets. 


    In this episode of TechSurge, host Michael Marks speaks with Lip-Bu Tan, CEO of Intel and one of the semiconductor industry's most influential investors and executives. The conversation traces Tan's journey from studying nuclear engineering at MIT to leading Cadence's turnaround, investing in more than 500 technology companies, and now steering Intel through one of the most significant transformations in its history.


    Tan shares his VC conviction on backing semiconductor startups when most venture investors favored software, and why he believes AI's next breakthroughs will come from advances in memory, packaging, photonics, cooling and high-speed connectivity. He also opens up on the leadership philosophy that defined his time at Cadence, where listening to customers and building a culture of responsiveness became the foundation of the company's revival.


    Wearing his CEO hat, Tan explains Intel's long-term strategy, why vertical integration still matters, how the company plans to reconnect with the startup ecosystem, and why missing another technology wave is not an option. 


    Speaker Profiles and Links



    Lip-Bu Tan: CEO of Intel Corporation, Chairman of Walden International, Founding Managing Partner of Walden Catalyst Ventures
    LinkedIn: https://www.linkedin.com/in/lip-bu-tan-284a7846/
    celesta.vc bio link 
    Intel ceo bio link 


    Further reading and resources

    • Reuters – “Intel’s new CEO plots overhaul of manufacturing and AI operations”https://www.reuters.com/technology/intels-new-ceo-plots-overhaul-manufacturing-ai-operations-2025-03-17/ 
    • Intel – https://www.intel.com
    • Celesta Capital – https://www.celesta.vc
    • SIA – “Global annual semiconductor sales increase 25.6% to $791.7 billion in 2025” – https://www.semiconductors.org/global-annual-semiconductor-sales-increase-25-6-to-791-7-billion-in-2025/
    • Infercom – “What is an RDU? Reconfigurable Dataflow Unit” – https://infercom.ai/glossary/rdu/
    • SemiconductorX – “Advanced Packaging: CoWoS, Foveros, EMIB, 3D IC” – https://semiconductorx.com/packaging-overview.html
    • TWIML AI Podcast – “Dataflow Computing for AI Inference [Kunle Olukotun]” – https://twimlai.com/go/751


    Chapters:

    00:00- Introduction
    03:03- Lip-Bu Tan's Journey to Silicon Valley
    04:12- Betting on Semiconductors Before AI
    06:25- Why Hardware Matters Again
    07:35- Investing in Deep Tech
    09:31- Learning Through Boardrooms
    12:10- Building the Next Generation of AI Infrastructure
    17:03- The Cadence Turnaround
    19:03- Customer Obsession as a Leadership Strategy
    23:02- Rebuilding Intel
    26:03- AI's Next Bottlenecks
    30:32- Looking Ahead: The Future of Computing 


    36 min
  • The Moving Bottleneck: Networking, Power, Memory, and the Race to Win AI

    Artificial intelligence is often discussed through models and GPUs. This episode looks beneath that surface, at the power delivery and networking required to make AI work at scale.

    Host Sriram Viswanathan speaks with Rajiv Khemani, a serial deep tech entrepreneur whose career has tracked several major infrastructure cycles: internet networking, cloud switching, blockchain compute and now AI networking. Khemani reflects on his early work at NetBoost and Intel, his operating role at Cavium, and the founding of Innovium, which Marvell agreed to acquire for $1.1 billion in 2021. He also explains how work on low-power blockchain silicon led his team toward the infrastructure demands created by generative AI.

    The discussion examines why incumbents often overlook emerging markets, why purpose-built hardware can outperform systems inherited from an earlier technology cycle, and how founders decide whether to keep financing a company or sell while the outcome remains attractive. Khemani describes the concentration risk of selling to a small number of hyperscalers, the fragility of semiconductor supply chains, and why leading-edge chip development now demands much larger balance sheets.

    The conversation then turns to AI’s emerging bottlenecks. Large models require many accelerators to operate as one computer, making low-latency scale-up and scale-out networks central to performance. The episode explores heterogeneous compute, open networking standards, memory scarcity, AI’s growing electricity demand, and the competition between AI and Bitcoin mining for energy. 


    Speaker Profiles and Links

    Sriram Viswanathan: Founding Managing Partner, Celesta Capital — https://www.linkedin.com/in/onesriram/
    Rajiv Khemani: Co-founder and Executive Chairman, Upscale AI; deep-tech entrepreneur and IIT Delhi alumnus
    LinkedIn: https://www.linkedin.com/in/rajivkhemani/
    Profile and contribution to the IIT, Delhi, Yardi School of Artificial Intelligence : https://scai.iitd.ac.in/rajiv-khemani 


    References Mentioned and Further Reading

    1. Upscale AI : https://upscaleai.com/ 
    2. Upscale AI Launch Announcement : https://upscaleai.com/press-release/ 
    3. Velaura AI : https://velaura.ai/ 
    4. Acquisition of Innovium and cloud data-centre switching rationale, Marvell: https://www.marvell.com/company/newsroom/marvell-to-acquire-innovium-accelerates-cloud-growth-with-expanded-ethernet-switching-portfolio.html 
    5. Cavium combination and infrastructure semiconductor strategy, Marvell:  https://www.marvell.com/company/newsroom/marvell-and-cavium-to-combine-creating-an-infrastructure-solutions-powerhouse.html 
    6. Energy and AI, International Energy Agency: https://www.iea.org/reports/energy-and-ai
    7. Energy demand from AI, International Energy Agency: https://www.iea.org/reports/energy-and-ai/energy-demand-from-ai 
    8. Tokenisation in the context of money and other assets, Bank for International Settlements : https://www.bis.org/cpmi/publ/d225.pdf 
    9. Leveraging tokenisation for payments and financial transactions, Bank for International Settlements : https://www.bis.org/publ/othp92.pdf 
    10. Collective communication for clusters exceeding 100,000 GPUs, Meta researchers : https://arxiv.org/abs/2510.20171 
    11. Load balancing for AI training workloads, UC Berkeley researchers : https://arxiv.org/abs/2507.21372 
    12. Reliability in large-scale machine-learning clusters : https://arxiv.org/abs/2410.21680 
    13. Bitcoin: A Peer-to-Peer Electronic Cash System : https://bitcoin.org/bitcoin.pdf 

    Timestamps:


    [Timestamp] Chapter Title

    00:00 - Highlights and welcome
    02:28 - From IIT Delhi to Silicon Valley
    07:50 - Building Through Major Technology Waves
    10:19 - Why Incumbents Miss Emerging Markets And Where Start-Ups Win
    12:47 - Building Innovium for the Cloud
    19:37 - Supply Shocks and Strategic Exits
    27:28 - From Bitcoin Chips to AI
    30:09 - Bitcoin, Tokenisation and Energy
    42:37 - Agentic AI and Future Networks
    53:21 - Memory, Capital and Founder Resilience

    1 hr 12 min
  • Physical AI, Quantum, and Bio-Innovation: Inside Canada’s Research Frontier

    Canada produces world-leading science, engineering, and AI research. So why does so much of that research still commercialize outside of Canada?


    In this episode of TechSurge, host Nic Brathwaite puts that question to four leaders at two of Canada's top research universities: Mary Wells (Dean of Engineering) and Chris Houser (Dean of Science) at the University of Waterloo, and Heather Sheardown (Dean of Engineering) and Gianni Parise (VP Research) at McMaster.


    At Waterloo, Mary Wells traces how the university's origin produced one of the world's most influential co-op programs and a creator-owned IP policy that lets inventors keep their ideas, making the school a talent engine for global tech. The group digs into Canada's AI paradox, foundational research and talent but far less of the economic value, and what quantum, robotics, and advanced manufacturing show about getting research to market.


    McMaster runs a different model, built on health sciences, nuclear research, and problem-based learning. Heather Sheardown explains the McMaster Method and why it matters in an AI-shaped future. Gianni Parise argues for commercialization as a core university function, with work spanning AI-assisted drug discovery, inhaled vaccines, critical-mineral-free motors, and a campus nuclear reactor that supplies much of the world's iodine-125 for prostate cancer treatment. They also unpack Fusion Pharmaceuticals, the McMaster spin-out acquired by AstraZeneca, and what it reveals about university commercialization.


    Together, these conversations ask what universities must become in an era defined by AI, deep tech, national competitiveness, and the urgent need to move ideas from the lab into the world.

    Sign up for our newsletter at techsurgepodcast.com for updates on upcoming TechSurge Live Summits and future episodes.

    Speaker Profiles and Links

    • Mary Wells - University of Waterloo Profile: https://uwaterloo.ca/engineering/about/dean-engineerin
    • Chris Houser - University of Waterloo profile: https://uwaterloo.ca/earth-environmental-sciences/profile/chouser
    • Heather Sheardown - McMaster Engineering profile: https://www.eng.mcmaster.ca/chemeng/faculty/dr-heather-sheardown/
    • Gianni Parise - McMaster Experts Profile: https://experts.mcmaster.ca/people/pariseg

      Chapters:

      0:00 Highlights
      0:56 Welcome 
      2:39 Waterloo’s origin story 
      4:51 Creator-owned IP and the Waterloo model 
      7:42 The Co-op Flywheel 
      8:56 Canada’s AI paradox: world-class research, slower domestic value capture 
      10:21 AI, Regulation, Trust, and Canadian Competitiveness 
      17:09 Rethinking the PhD for Commercialisation 
      21:43 Inside Waterloo’s labs 
      30:14 What Waterloo wants to be in ten years: builders of the country 
      32:39 Meet McMaster: health sciences, nuclear capability, and research intensity 
      34:12 The McMaster Method 
      35:11 Research, Health, and Commercialisation 
      40:45 McMaster Labs: Heat, Motors and Health Innovation 
      47:13 Bioinnovation, Nuclear Research and Fusion Pharmaceuticals 
      58:43 The university of 2035: less lecture, deeper societal impact 


    References Mentioned and Further Reading

    • University of Waterloo Policy 73 - Intellectual Property Rights: https://uwaterloo.ca/secretariat/policies-procedures-guidelines/policies/policy-73-intellectual-property-rights
    • University of Waterloo - Our IP policy: https://uwaterloo.ca/entrepreneurship/our-ip-policy
    • University of Waterloo Co-op programs: https://uwaterloo.ca/future-students/co-op
    • University of Waterloo - Academy of Research Commercialization: https://uwaterloo.ca/conrad-school-entrepreneurship-business/graduate-students/academy-research-commercialization-arc
    • Open Quantum Design: https://openquantumdesign.org/
    • Institute for Quantum Computing, University of Waterloo: https://uwaterloo.ca/institute-for-quantum-computing/
    • CIFAR - Pan-Canadian Artificial Intelligence Strategy: https://cifar.ca/ai/
    • Government of Canada / ISED - Pan-Canadian Artificial Intelligence Strategy: https://ised-isde.canada.ca/site/ised/en/pan-canadian-artificial-intelligence-strategy
    • Statistics Canada - Understanding Canada’s innovation paradox: https://www150.statcan.gc.ca/n1/pub/36-28-0001/2024007/article/00002-eng.htm
    • Council of Canadian Academies - Innovation and Business Strategy: Why Canada Falls Short: https://cca-reports.ca/wp-content/uploads/2018/10/2009-06-11-innovation-report-1.pdf
    • KPMG / University of Melbourne - Trust, attitudes and use of artificial intelligence: https://assets.kpmg.com/content/dam/kpmg/ca/pdf/2025/07/trust-in-ai-en-report.pdf
    • McMaster - Our approach to teaching and learning / Problem-Based Learning: https://provost.mcmaster.ca/teaching-learning/our-approach/
    • McMaster - Evidence-based medicine: https://fhshrwelcome.mcmaster.ca/did_you_know/evidence-based-medicine/
    • McMaster Nuclear Reactor - Medical Isotopes: https://nuclear.mcmaster.ca/medical-isotopes/
    • McMaster Industry Liaison Office - IP and commercialization FAQ: https://research.mcmaster.ca/mcmaster-industry-liaison-office-milo/ip-education/intellectual-property-guides/faqs/
    • McMaster - AstraZeneca to acquire McMaster-supported Fusion Pharmaceuticals: https://news.mcmaster.ca/astrazeneca-to-acquire-mcmaster-supported-fusion-pharmaceuticals/
    • Fusion Pharmaceuticals - FACIT investment and CPDC spin-out background: https://fusionpharma.com/facit-announces-investment-in-fusion-pharmaceuticals-and-alpha-emitting-radiotherapeutics/
    • PubMed - Evidence-based medicine and problem-based learning at McMaster: https://pubmed.ncbi.nlm.nih.gov/31617018/
    • ScienceDirect - Fifty Years on: The first problem-based learning programme at McMaster:
    1 hr 10 min
  • Google's Chief Technologist on Intelligent Search in the Age of AI

    TechSurge is sponsored by Notion. From product roadmaps to investor updates, Notion is where modern teams plan, write, and ship together. Get started at http://notion.dev/techsurge.

    Search began as a way to find pages. AI is turning it into a way to ask, reason, decide, and act.

    Search has always been more than a technical problem. It is a way of organising knowledge, connecting intent with information, and increasingly, turning questions into actions. In the age of artificial intelligence, that basic function is being redefined.

    In this episode of TechSurge, host Sriram Vishwanath speaks with Prabhakar Raghavan, Chief Technologist at Google, about the long arc of search: from the early web and link analysis to knowledge graphs, language models, transformers, Gemini, and the unresolved question of how AI will change the way we find, trust, and use information.

    Prabhakar reflects on his career as a computer scientist, researcher, and technology leader, beginning with his time at IBM Research, where he worked on algorithms, optimization, databases, and early information retrieval. He explains how the explosion of unstructured data on the web created a new class of technical and economic problems. Search was not simply about indexing pages; it was about imposing structure on a chaotic information environment and building mechanisms that could connect supply, demand, relevance, authority, and trust.

    The conversation traces how early search evolved through link analysis and PageRank, drawing on ideas from scholarly citation analysis, graph theory, and algorithmic ranking. Prabhakar describes why authority and trust became central to search as the web grew, and why users themselves changed alongside the technology. As search engines became more capable, people moved from looking for simple webpages to asking richer, more contextual questions that required intent understanding rather than mere document retrieval.


    Sriram and Prabhakar then explore the transition from classical search to AI-infused products. Through examples such as Gmail Smart Reply, Smart Compose, Google Drive recommendations, and knowledge graphs, Prabhakar shows how prediction, context, and language modelling were already reshaping user experiences well before the current generative AI wave. These systems were early signals of a broader shift: computers moving from retrieving information to anticipating what users might need next.

    The episode also offers a technical tour of the major algorithmic milestones that led to today’s AI systems, including deep learning, sequence-to-sequence models, attention mechanisms, transformers, and the compute architectures needed to train and serve large models. Prabhakar explains why attention changed the quality of language modelling, why AI systems appear increasingly conversational, and why compute remains one of the central constraints in the field.


    At the heart of the discussion is the central tension facing search today: if AI systems can generate answers directly, what becomes of search as we know it? Prabhakar does not frame AI as the end of search, but as its next transformation. The future of search may be less about finding a page and more about understanding intent, synthesising knowledge, reasoning through ambiguity, and helping users complete complex tasks.

    The conversation closes with deeper questions about AI world models, hallucination, test-time compute, diffusion models, recursive self-improvement, theorem proving, and whether AI systems can ever reason with the same grounded understanding as humans. For Prabhakar, the challenge is not only to build more powerful models, but to understand their limits, failure modes, and relationship to truth.


    This episode is a wide-ranging exploration of how search became one of the defining technologies of the internet age—and how artificial intelligence may now force us to rethink what it means to search at all.

    Sign up for our newsletter at techsurgepodcast.com for updates on upcoming TechSurge Live Summits and future episodes.

    Links:

    • Prabhakar Raghavan - Google Research profile: https://research.google/people/prabhakarraghavan/?&type=google
    • Prabhakar Raghavan - Google blogs and writing: https://blog.google/authors/prabhakar-raghavan/

    References Mentioned During the Discussion

    • Brin and Page - The Anatomy of a Large-Scale Hypertextual Web Search Engine: https://research.google/pubs/the-anatomy-of-a-large-scale-hypertextual-web-search-engine/
    • Page, Brin, Motwani and Winograd - The PageRank Citation Ranking: https://ilpubs.stanford.edu:8090/422/1/1999-66.pdf
    • Jon Kleinberg - Authoritative Sources in a Hyperlinked Environment: https://www.cs.cornell.edu/info/people/kleinber/auth.pdf
    • Manning, Raghavan and Schutze - Introduction to Information Retrieval: https://nlp.stanford.edu/IR-book/
    •  Google - Introducing the Knowledge Graph: things, not strings: https://blog.google/products-and-platforms/products/search/introducing-knowledge-graph-things-not/
    • Google Help - How Google's Knowledge Graph works: https://support.google.com/knowledgepanel/answer/9787176

    Further Reading

    • Krizhevsky, Sutskever and Hinton - ImageNet Classification with Deep Convolutional Neural Networks: https://proceedings.neurips.cc/paper/2012/hash/c399862d3b9d6b76c8436e924a68c45b-Abstract.html
    • Vaswani et al. - Attention Is All You Need: https://papers.neurips.cc/paper/7181-attention-is-all-you-need
    • Devlin et al. - BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding: https://aclanthology.org/N19-1423/
    • Chen et al. - Gmail Smart Compose: Real-Time Assisted Writing: https://arxiv.org/abs/1906.00080
    • Kannan et al. - Smart Reply: Automated Response Suggestion for Email: https://arxiv.org/abs/1606.04870
    • Hoffmann et al. - Training Compute-Optimal Large Language Models: https://arxiv.org/abs/2203.15556
    •  Tay et al. - Scale Efficiently: Insights from Pre-training and Fine-tuning Transformers:
    1 hr 19 min
  • Battle for the AI Data Center: Deep Dive on the Semiconductor Supercycle


    Semiconductors have moved from the background of the technology stack to the center of the AI economy. What used to be a specialized industry discussed mostly by engineers and investors is now shaping the speed, cost, and strategic direction of modern computing.

    In this episode of TechSurge, host Michael Marks speaks with Stacy Rasgon, Managing Director and Senior Analyst covering U.S. semiconductors and semiconductor capital equipment at Bernstein Research. Stacy has spent years analyzing the chip industry across cycles, but argues that the current moment feels different in scale: AI demand has created an unprecedented scramble for compute, memory pricing has surged, and companies across the stack are being forced to rethink capacity, architecture, and capital allocation.

    The conversation explains the 4 different kinds of semiconductor cycles—supply, inventory, product, and demand — and why Stacy believes the industry is currently in a demand cycle of unusual magnitude. The discussion also unpacks the distinction between DRAM and NAND, why high-bandwidth memory is becoming strategically central to AI systems, and how the physical realities of wafer capacity and silicon area are constraining supply in ways the broader market often misses.

    Stacy and Michael also discuss the hardware economics behind the current boom, with Michael pressing Stacy on why compute remains so scarce and how companies are improving performance through packaging and system design. Michael then moves the conversation beyond market headlines to the core business questions: who is actually paying for this compute, which use cases are generating real revenue, and whether AI spending is creating durable economic value or simply shifting costs elsewhere. Together, these questions highlight two of the episode's clearest insights: coding may be one of the earliest AI applications with meaningful willingness to pay, and inference, not training, is the real test of whether the current buildout becomes a lasting business or just another expensive wave of infrastructure.

    Stacy explains the concentration of power among the major wafer fabrication equipment players, the rise of ASICs as a meaningful share of AI silicon, Broadcom's rapidly expanding AI opportunity, and the growing role of Chinese companies as new entrants, especially in memory and semiconductor equipment. Along the way, the conversation asks the defining question facing the sector: is this just another semiconductor upswing, or the first true supercycle the industry has seen? Stacy believes that this might be the biggest supercycle he has seen in his career.

    Sign up for our newsletter at techsurgepodcast.com for updates on upcoming TechSurge Live Summits and future episodes.

    Links:

    1. Stacy Rasgon on LinkedIn: https://www.linkedin.com/in/stacy-rasgon-6924963
    2. Bernstein: https://www.alliancebernstein.com/corporate/en/home.html

    References Mentioned During the Discussion

    1. NVIDIA Blackwell Platform: https://www.nvidia.com/en-us/data-center/blackwell-platform/
    2. High Bandwidth Memory (HBM) overview from Micron: https://www.micron.com/products/memory/hbm
    3. DRAM overview from IBM: https://www.ibm.com/think/topics/dram
    4. NAND flash overview from IBM: https://www.ibm.com/think/topics/nand-flash-memory

    Further Reading

    1. McKinsey on the semiconductor industry outlook: https://www.mckinsey.com/industries/semiconductors/our-insights/the-semiconductor-industry-in-2025
    2. Semiconductor Industry Association: 2025 State of the U.S. Semiconductor Industry: https://www.semiconductors.org
    3. NVIDIA on the Blackwell architecture and AI infrastructure roadmap: https://www.nvidia.com/en-us/data-center/blackwell-platform/
    4. Broadcom AI investor materials and infrastructure commentary: https://investors.broadcom.com
    5. ASML on lithography and advanced chip manufacturing: https://www.asml.com/en/technology
    6. Micron on HBM and AI memory demand: https://www.micron.com/products/memory/hbm

      Chapters


    [00:00:00] — Highlights
    [00:00:26] — Welcome to  the Episode
    [00:01:29] — Meet Stacy Rasgon
    [00:02:01] — Is This the First Real Semiconductor Supercycle?
    [00:05:33] — Inside the Strongest Memory Cycle in History 
    [00:09:14] — Can Innovation Keep Up With AI Demand?
    [00:11:33] — Chiplets, Blackwell, and the New Economics of Compute 
    [00:12:37] — What Could Signal the Cycle Is Slowing
    [00:14:26] — Vertical Integration at the Hyperscales 
    [00:16:36] — The Difference between Apple and Meta
    [00:17:15] — What is Vertical Integration Being Done For?
    [00:18:15] — Will other bottlenecks develop as This Progresses? 
    [00:21:13] — Oligopoly Pricing in the Market
    [00:22:22] — Any New Entrants into Memory?
    [00:23:46] — Why the Industry Must Pivot From Training to Inference
    [00:25:10] — Agentic Coding and the First Real AI Revenues
    [00:26:57] — Groq, Low-Latency Inference, and What GPUs Cannot Do Alone
    [00:29:28] —-Could The Smaller Companies All be Bought Up ?
    [00:30:19] — Why Semiconductor Equipment Matters More Than Ever 
    [00:31:00] — How Semiconductor Equipment is Affected by the Cycle
    [00:32:55] — A Long Upcycle for Semiconductor Equipment Guys?
    [00:33:13] — The Big Five and the Rise of Chinese Equipment Players
    [00:34:24] — The Effects of Geopolitics
    [00:35:02] — Broadcom’s Quiet AI Breakout
    [00:40:46] — ASICs vs GPUs and the Next Wave of Custom Chips
    [00:41:06] — Intel, Foundry Strategy, and the Long Turnaround
    [00:46:46] —-The Risks the Market May Still Be Underestimating
    [00:49:32] — Where Startups Still Have Room to Win
    [00:50:39] — What the Semiconductor Industry Could Look Like Next Year


    54 min
  • In-Orbit Manufacturing, AI Data Centers, and the New Space Economy with MIT’s Ariel Ekblaw

    For most of human history, space has been a place we visited. The next chapter may be about building there.

    For decades, space was the domain of governments, astronauts, and science fiction. Today, falling launch costs, reusable rockets, and a new generation of ambitious founders are turning orbit into something else entirely: a place to build. The question is no longer whether humanity can construct large-scale infrastructure in space, but what we should build first—and why.

    In this episode of TechSurge, host Sriram Vishwanath speaks with Dr. Ariel Ekblaw, Founder and CEO of Aurelia Institute, Research Affiliate at MIT’s Space Exploration Initiative, and founder of Rendezvous Robotics. Ariel has spent her career exploring one of the most fundamental challenges of the emerging space economy: how to build structures in orbit that are far larger than anything that can fit inside a rocket.

    Ariel explains the origins of TESSERAE, her pioneering work on autonomous self-assembling space architecture, and how ideas borrowed from biology, swarm intelligence, and modular construction could unlock a future of massive solar arrays, communications infrastructure, orbital laboratories, and eventually human habitats in space.

    The conversation explores the rapidly emerging market for in-orbit infrastructure, including AI data centers in space, space-based solar power, and the technologies needed to support a permanent industrial presence beyond Earth. Ariel breaks down the engineering realities behind these ideas—why cooling data centers in space is harder than most people assume, how autonomous assembly could solve the scale problem, and why the future of orbital infrastructure may look more like a business park than a collection of standalone satellites.

    Sriram and Ariel also discuss the broader implications of humanity’s return to space: the economics unlocked by reusable launch systems, the opportunities created by dramatically lower transportation costs, and the second-order innovations that may emerge from building an industrial ecosystem in orbit. Along the way, they examine space debris, stewardship of the orbital commons, artificial gravity, and what it will take to make long-term human habitation in space viable.

    At the heart of the discussion is Ariel’s belief that space is not an escape from Earth’s problems, but a tool for solving them. Whether through advanced manufacturing, new energy systems, biotechnology research, or entirely new industries, she argues that the next era of space exploration should be focused on improving life here at home.

    Sign up for our newsletter at techsurgepodcast.com for updates on upcoming TechSurge Live Summits and future episodes.

    Links:

    Ariel Ekblaw on LinkedIn:https://www.linkedin.com/in/arielekblaw
    Aurelia Institute:https://www.aureliainstitute.org
    Rendezvous Robotics:https://www.rdvrobotics.com
    MIT Space Exploration Initiative:https://www.media.mit.edu/groups/space-exploration/overview/

    How Aurelia is Designing Self-Assembling Space Stations: https://www.fastcompany.com/91242689/how-the-aurelia-institute-is-designing-a-self-assembling-space-station
    Overview Energy (Space-Based Solar Power): https://www.overviewenergy.com
    StarCatcher Industries (Space-to-Space Power Transmission): https://www.starcatcherindustries.com
    Impulse Space (Orbital Transportation): https://www.impulsespace.com

    References Mentioned During the Discussion

    Earthrise - The Apollo 8 Photograph: https://www.nasa.gov/image-article/apollo-8-earthrise/
    Carl Sagan’s “Pale Blue Dot”: https://www.planetary.org/worlds/pale-blue-dot
    Buckminster Fuller Institute: https://www.bfi.org

    Watch Ariel’s Talks & Interviews

    Aurelia Institute YouTube Channel: https://www.youtube.com/@AureliaInstitute
    Ariel’s TED Talk: https://youtu.be/IHrGK3Mu5K4?si=QwGHq1BEoB-QMUjk
    Space Business Podcast - Self-Assembling Space Habitats with Ariel Ekblaw: https://spacebusiness.podbean.com/e/137-self-assembling-space-habitats-ariel-ekblaw-founder-ceo-aurelia-institute/

    Further Reading

    NASA’s Artemis Program: https://www.nasa.gov/artemis
    International Space Station (ISS): https://www.nasa.gov/international-space-station
    Aurelia Institute’s Vision for Humanity’s Future in Space: https://www.aureliainstitute.org
    MIT News: Supporting Mission-Driven Space Innovation: https://news.mit.edu/2025/supporting-mission-driven-space-innovation-aurelia-institute-0710


    Timestamps:

    [00:00] Highlights

    [00:34] Welcome to the Episode

    [02:33] The New Space Race Begins

    [04:10] Meet Dr. Ariel Ekblaw

    [06:30] Why We Explore Space? 

    [12:53] How She Discovered Self-Assembly at MIT 

    [17:10] How TESSERAE Tiles Build Themselves

    [20:14] How the Tiles Coordinate Like a Swarm

    [24:47] Repairing and Reconfiguring Structures in Orbit

    [28:32] Why the Space Industry Is Exploding Now

    [34:25] The Case for AI Data Centers in Space

    [45:21] How Much Compute Will Move to Space?

    [48:40] Why This Space Era Is Different

    [52:24] The Growing Problem of Space Debris

    [55:14] Building the Next SpaceX

    [57:27] What Could Go Wrong in Space?

    [59:33 ] How Many Hours of Gravity Do Humans Need?

    [01:00:38] Why We Should Build in Low Earth Orbit First

    [01:05:09] Should We Really Colonize Mars?

    [01:11:27] Could You Commute to Space for Work?

    [01:13:50] Who Makes the Rules in Space?

    [01:22:30] What's Overhyped and Underhyped in Space

    [01:26:57]What's the Real Story in Space?


    1 hr 29 min
  • The U.S. – China Deep Tech Arms Race

    For years, the United States told itself a reassuring story: China could manufacture and copy, but it couldn't innovate. That story is no longer credible. From DeepSeek's compute-efficient AI model to BYD's dominance of the global EV market, China is producing both volume and quality across sectors that matter. The question is no longer whether China can compete — it's whether the United States is playing its own hand well.

    In this episode of TechSurge, host Michael Marks speaks with Vivek Chilukuri, Senior Fellow at CNAS, where he focuses on U.S.–China technology competition, AI policy, and digital geopolitics. Vivek's path from counter-terrorism work at the State Department to tech policy in the Senate gives him an unusually grounded perspective on how government actually functions — and where it keeps failing itself.

    Vivek and Michael work through the full competitive landscape: the wake-up moments that shifted Washington's focus from manufacturing to technology dominance, why the dual-use nature of advanced technology has pulled the national security community into conversations once left to industry, and what Made in China 2025 actually achieved — and where it fell short.

    The conversation goes deep on America's policy toolkit: what the CHIPS Act accomplished and why it wasn't enough, how export controls on advanced semiconductors are working and what they're missing, and why Washington is far too weighted toward restriction at the expense of the "run faster" side of the equation. Vivek is also candid about what DeepSeek really tells us — not just about Chinese innovation, but about the gap between building a model and deploying AI at scale.

    They also explore the global dimension: China's "easy button" approach to technology exports, what the U.S. AI exports program is trying to do in response, the rise of "AI sovereignty" movements from Brussels to Delhi, and why the talent and immigration decisions of the past year amount to a serious self-inflicted wound.

    The United States still holds the best hand in the world for this competition. The question Vivek keeps returning to is whether we're playing it well — and right now, his honest answer is no.

    Sign up for our newsletter at techsurgepodcast.com for updates on upcoming TechSurge Live Summits and future Season 2 episodes.

    Episode Links:

    • Connect with Vivek: https://www.linkedin.com/in/vivekchilukuri/
    • Learn more about CNAS: https://www.cnas.org

    Timestamps:

    [02:11] Wake-Up Calls: Chips & 5G

    [04:17] Atoms vs Bits in AI

    [07:27] China's Innovation Surge

    [10:57] Systems Capital vs Planning

    [14:14] Made in China 2025 Scorecard

    [17:23] US Tools: Chips & Controls

    [24:12] DeepSeek & Compute Scarcity

    [26:47] Energy Constraints & Scaling

    [29:01] AI Exports & the Easy Button

    [32:43] Allies & AI Sovereignty

    [36:13] Talent Flows & Immigration

    [39:04] Beyond AI: The Biotech Frontier

    [43:30] Founder Advice: Global South

    [45:20] Wrap-Up & Key Takeaways

    48 min

About TechSurge: Deep Tech Podcast

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The TechSurge: Deep Tech VC Podcast explores the frontiers of emerging tech, geopolitics, and business, with conversations tailored for entrepreneurs, technologists, and investment professionals. Presented and hosted by the Celesta Capital team. Send feedback and show ideas to [email protected].