Fundamentals of Fundamentals

Janusz — CEO of LX — joins Brian on Fundamentals of Fundamentals to rip on a phrase that makes people say "that's cool as f***, but what is it?": Bitcoin dark pools. In TradFi, a dark pool is just confidential, off-order-book matching for large trades: buyer and seller don't know each other, and the trade is disclosed after the fact. It's an entirely legitimate, everyday practice. The problem is that Bitcoin's ledger is completely public. Move a doxxed UTXO from one custodian to an OTC desk and Twitter knows what you're doing before your disclosure does.

LX is building the Bitcoin version: pseudonymous peer-to-peer order matching (simple RFQ, no price oracles) with settlement that happens entirely off-chain, so there's nothing for chain surveillance to clock. Under the hood it's a statechain: a 2-of-2 multisig with a co-signer that's completely blind. It doesn't know what it's signing. LX adds zero-knowledge proofs, so a receiver can verify a coin is valid without learning every previous owner of that coin. Users keep native L1 UTXOs and can plug the protocol into the custody and governance policies institutions already use.

The conversation also goes where Janusz didn't expect: compliance. If you exclude sanctioned funds, are you still operating in a 21M-bitcoin world? What is "pre-compliance," and why does it happen when regulators refuse to say what the rules are? And could zero knowledge be the cleanest form of compliance there is?

In this episode:
• The "Janusz" name story: a childhood video-game handle, a Polish Bitcoin community that wanted to know who the new Polish researcher was, and zero Polish ancestry
• What a dark pool actually is in TradFi, and why large block trades need it to avoid moving the market
• Why Bitcoin makes this harder: public UTXOs, chain-surveillance doxxing, and markets reacting to custodian-to-OTC moves
• Privacy as physical security: kidnapping, ransom, and violent attacks on people linked to their coins
• The case Janusz made to treasury companies: the next wave of institutional capital will demand private execution
• How price discovery works when trades are off the book: RFQ, broker order-splitting, and the market still seeing executed prices
• Pools, jurisdictions, and counterparties: proving you meet a compliance threshold without revealing who you are
• Brian's challenge: if a market excludes 3M sanctioned coins, are you still operating in a 21M-bitcoin world?
• Over-compliance vs. the actual requirement, Tornado Cash, and the Coin Center suit asking the DOJ for a straight answer
• Why the best "pre-compliance" may be zero knowledge, plus a plain-English primer on SNARKs, circuits, and why most "ZK" in Bitcoin isn't actually zero-knowledge
• Brian's algebra lens: proving two things are equivalent while abstracting away everything non-essential, including identity
• Statechains explained: transferring a key share instead of broadcasting, the blind co-signer, and ZK proofs that replace coin-history review
• Why a statechain instead of Lightning: direct off-chain receive, no channel opens, and keeping a public good out of the line of fire
• Why not Liquid: institutions need native L1 UTXOs and their own threshold governance policies (3-of-5, 4-of-7)
• The landscape: Shielded CSV, Ark-style protocols (Bark, Arkade), Spark, Citrea, and why Janusz wants more competitors, not fewer
• Security first: recent ecosystem incidents pushed launch from late 2026 to spring 2027 (pre-seed, hardened signers, secure enclaves)
• "Dark pools" vs. "boring shit for TradFi CFOs," and why Trojan-horsing the biggest holders is how private execution becomes the standard

️ Brian Hirschfield · Janusz
Fundamentals of Fundamentals: first-principles conversations about Bitcoin, money, and the people building it

⚡ Follow:
Brian on X: https://x.com/Fundamentals21m
Janusz on X: https://x.com/januszg_
LX: https://lx.dev
Magic Internet Math: https://magicinternetmath.com

Further reading:
Introducing Zark (by Janusz): https://hackmd.io/kKdngoHBStqRyuFp6x5h-A
Mastering Zcash: A Study in Private Money (Janusz's recommendation): https://maxdesalle.com/mastering-zcash/

#Bitcoin #DarkPools #BitcoinPrivacy #ZeroKnowledge #Statechains #LX #FundamentalsOfFundamentals #InstitutionalBitcoin #Privacy

In this episode, I sat down with Scott Ellam, founder and CEO of XCE, to unpack a business model that I think could become a real reference point for how Bitcoin gets used in the real economy. Scott explains why executive recruitment is full of profitable but structurally illiquid firms whose owners often spend decades building valuable businesses without any realistic exit. XCE is trying to change that by acting as a public acquisition vehicle for those firms, using a Bitcoin-backed balance sheet and listed-company structure to create a capital market where one barely existed before.

We dug into why this works specifically in recruitment: headcount drives revenue, margins are strong, and owners are often trapped between preserving cash, retaining talent, and hoping someone eventually buys them out. Scott argues that Bitcoin doesn’t just sit on the balance sheet as a treasury asset here—it helps create trust, auditability, long-term alignment, and a performance-based upside that can attract both sellers and top recruiters. We also got into custody, optionality, competition, and the longer-term vision: if this model proves itself in recruitment, it may become a template for other human-capital-heavy industries that have the same fragmentation, same private-market friction, and same need for a credible way to unlock value.

• Scott Ellam and the XCE team page: https://xce.io/meet-the-team/
• XCE (Connecting Excellence Group): https://xce.io/
• Spencer Riley: https://www.spencer-riley.com/
• Cartwright Pension Trusts: https://pensiontrusts.cartwright.co.uk/
• Elektron Energy: https://www.elektron-energy.com/

In this episode, I sat down with Rob Wallace of Bitcoin News for a wide-ranging conversation about two sides of Bitcoin that don’t often get treated together carefully enough: institutional adoption and personal responsibility. We unpacked why firms like BlackRock were drawn to Bitcoin in the first place, how moments like the 2022 gilt crisis and the 2023 banking panic changed the institutional calculus, and why Bitcoin keeps showing up as “crisis money” when the legacy system starts to wobble. Rob brought a market veteran’s perspective to the conversation, while I pushed on what it means for Bitcoiners to think clearly about power, incentives, and the lessons we should actually be learning from past fights inside the protocol and the broader ecosystem.

The back half of the conversation turned hard toward self-custody, security, and culture after the recent COLDCARD fallout. Rob and I talked through what too many people still misunderstand about hardware wallets, recovery, test transactions, multisig, and why generating your own seed with dice may need to become a true Bitcoin rite of passage. We also got into education, pleb slop, the role of media and memes, the importance of communities like the Bitcoin Bugle and the “red team,” and why Bitcoin ultimately needs more people who understand it deeply, not just people who believe in it superficially.

• Bitcoin News: https://bitcoinnews.com/
• Rob Wallace | Bitcoin News podcast: https://podcasts.apple.com/ca/podcast/rob-wallace-bitcoin-news/id1854168780
• libsecp256k1: https://github.com/bitcoin-core/secp256k1
• Ian Coleman BIP39 Tool: https://iancoleman.io/bip39/

In this episode, I sit down with Rob Hamilton to talk through one of the themes that has quietly connected a lot of our conversations over the years: risk. We unpack the difference between living with risk versus explicitly pricing it, why Bitcoiners are often strong at spotting failures in banking and fiat systems but weaker at thinking from first principles about market structure, and why liquidity, credit, derivatives, and pricing across time matter so much more than many people realize. Along the way, we contrast the maturity of fiat markets with the relative underdevelopment of Bitcoin markets, and why that gap makes it harder for capital allocators to evaluate major changes with confidence.

We also spend a lot of time on a core claim: markets are amoral, but unavoidable. If you want to influence a market, you can’t pretend you’re above it; participation, non-participation, pricing, and refusal to price all communicate information. Rob and I use examples ranging from miners and treasury companies to Bitcoin Cash, SegWit2x, ETFs, and hash-rate rental markets to argue that Bitcoin’s next phase requires better market signals, deeper liquidity, and more serious thinking about how information gets expressed when the stakes are no longer small. This was a fun crossover, but also a serious conversation about what Bitcoin still needs if it wants to be taken seriously at global scale.

• Magic Internet Math: https://magicinternetmath.com/
• AnchorWatch: https://www.anchorwatch.com/about
• Bitnomial: https://bitnomial.com/
• Shelling Out: The Origins of Money by Nick Szabo: https://nakamotoinstitute.org/library/shelling-out/

In this episode, I sat down with Charlie Stevens to explore what happens when actuarial thinking collides with Bitcoin, hard money, and the future of retirement income. We started with Charlie’s path through the actuarial profession in Ireland and into insurance consulting, then unpacked how reserve assumptions, capital rules, discount rates, and regulatory incentives shape the insurance world far more than most people realize. We also looked back at the evolution from defined benefit pensions to variable annuities, why so many lifetime income products became less viable as rates fell, and how the financial system increasingly drifted toward model-driven abstractions instead of economic reality.

From there, we got into the core question: what might lifetime income look like in a harder-money world? That led us to tontines — an old idea with a modern structure — and why Charlie believes they may be one of the most promising ways to solve longevity risk without relying on the fragile guarantees of the fiat era. We discussed how Tontine Trust works, why the incentives are so compelling, how Bitcoin and gold fit into the picture, and why this could become a major building block for retirement planning if people begin demanding simpler, more transparent products they can actually understand.

• Tontine Trust: https://tontine.com/
• Tontine Trust App: https://app.tontine.com/
• What Is a Tontine? (Tontine Trust): https://tontine.com/what-is-a-tontine/
• Sam Roberts on Bitcoin and Pension Investment (Cartwright): https://pensiontrusts.cartwright.co.uk/news-insights-the-case-for-pension-scheme-investment-in-bitcoin
• OECD Pensions Outlook 2024: https://www.oecd.org/en/publications/oecd-pensions-outlook-2024_51510909-en.html
• Dean McClelland / Team Tontine (About Us): https://tontine.com/es/about-us/
• Charlie Stevens / Team Tontine (About Us): https://tontine.com/es/about-us/

Today I sit down with my longtime friend Sly Goomba for an unfiltered conversation about identity, debt, sovereignty, and faith. We trace our early Bitcoin zealotry, why the label “Bitcoiner” feels empty today, and how paper Bitcoin, institutions, and interest-rate theater shape people’s behavior far more than we want to admit. From credit-card traps to mortgages, we wrestle with whether rates even matter, what it means to keep your word, and how to build a life that isn’t brittle. We get personal about marriages stressed by conviction, why Bitcoin often wrecks before it refines, and why real upgrades start with loving yourself and pursuing a relationship with God. We talk about building sturdier structures—community, study, and service—through things like BitDevs and honest education, and we land on a simple charge: stop LARPing, tell the truth, and become the kind of person strong enough to fix a little bit of the world.

• 'High Hash Rate' podcast: https://highhashrate.com
• 'Rock Paper Bitcoin' podcast: https://rockpaperbitcoin.com
• BitDevs (NYC and global meetups): https://bitdevs.org
• Chaincode Labs (NYC BitDevs host): https://chaincode.com
• Zeus Wallet (Lightning): https://zeusln.app
• Magic Johnson (official site): https://www.magicjohnson.com
• Bible (New Testament online): https://www.biblegateway.com

In this solo riff, I challenge an Overton window many Bitcoiners (and I once) held sacred: that Austrian economics is a complete economic theory rather than a powerful tool for debunking bad ones. Sparked by reading Irreducible by Federico Faggin, I draw a parallel between classical vs. quantum physics and classical vs. Austrian economics, arguing that Austrian thought excels at telling us what economics is not—but becomes a trap when treated as a unifying theory. I share how reverence for Mises, Rothbard, and Hoppe helped me cut through intellectual tyranny, yet nearly led me into “wrong-think” when I tried to force every question through their lens. From Keynes to Hayek, from Newton to Planck, I urge the Bitcoin thinking class to resist authority worship, expand the reading list to include classical economists like Adam Smith and Milton Friedman, and remain in inquiry. Austrian ideas are invaluable lightsabers for avoiding errors, not priestly dogmas to close debates—especially when we’re still collectively figuring out what Bitcoin is and what a hard-money world may or may not look like.

• 'Irreducible: Consciousness, Life, Computers, and Human Nature' (Federico Faggin): https://www.amazon.com/Irreducible-Consciousness-Computers-Human-Nature/dp/1956259105
• Federico Faggin (biography): https://en.wikipedia.org/wiki/Federico_Faggin
• 'Human Action' (Ludwig von Mises): https://en.wikipedia.org/wiki/Human_Action
• Hans-Hermann Hoppe: https://en.wikipedia.org/wiki/Hans-Hermann_Hoppe
• 'Democracy: The God That Failed' (Hans-Hermann Hoppe): https://en.wikipedia.org/wiki/Democracy:_The_God_That_Failed
• Murray Rothbard: https://en.wikipedia.org/wiki/Murray_Rothbard
• John Maynard Keynes: https://en.wikipedia.org/wiki/John_Maynard_Keynes
• Friedrich A. Hayek (Nobel Prize facts, 1974): https://www.nobelprize.org/prizes/economic-sciences/1974/hayek/facts/
• Adam Smith: https://en.wikipedia.org/wiki/Adam_Smith
• Milton Friedman: https://en.wikipedia.org/wiki/Milton_Friedman
• Austrian School (overview): https://en.wikipedia.org/wiki/Austrian_School
• Praxeology: https://en.wikipedia.org/wiki/Praxeology
• Bitcoin (project site): https://bitcoin.org
• Classical mechanics: https://en.wikipedia.org/wiki/Classical_mechanics
• Quantum field theory: https://en.wikipedia.org/wiki/Quantum_field_theory
• Isaac Newton: https://en.wikipedia.org/wiki/Isaac_Newton
• Galileo Galilei: https://en.wikipedia.org/wiki/Galileo_Galilei
• Nicolaus Copernicus: https://en.wikipedia.org/wiki/Nicolaus_Copernicus
• Albert Einstein: https://en.wikipedia.org/wiki/Albert_Einstein
• Max Planck: https://en.wikipedia.org/wiki/Max_Planck

In this episode, I sit down with Steven Lubka to reflect on the last few years of Bitcoin culture—from the electric energy of 2021–2023 Twitter Spaces to why the vibe inevitably tracks the price. We dig into how higher interest rates changed capital allocation, why dispersion has returned to markets, and how that raises the bar for real innovation versus ZIRP-era junk. We also revisit the UK LDI scare and the 2023 U.S. bank stress to ask what the Fed actually proved about its ability to “kick the can,” and what Bitcoiners often get wrong about system fragility versus resilience.

From pleb slop and rigid certainties to the harder work of holding nuanced, probabilistic views, Steven and I talk about conviction over decades, why mining is a full-on industrial business (not a casual hobby), and how years spent in Bitcoin unexpectedly prepared us for the AI acceleration now reshaping everything. We close on the importance of gradual change, personal growth, and building the grit to survive-and-advance through volatility, FUD, and the long arc of adoption.

• 'Magic Internet Math (host’s project)': https://magicinternetmath.com/

7/11 Bitcoin en Español event at Pubkey NYC:https://www.satlantis.io/events/1663/Bitcoin-en-Espa%C3%B1ol
Local Block Market # 7 at Olde Mecklenburg Brewey LoSo, Charlotte, NC:https://www.satlantis.io/events/2203/local-block-market-7
Delgado's Fuego Store:https://delgadosfuego.com/collections/all
MotivPeru's Copa Bitcoin 2026 at Huanchaco, Peru:https://motivperu.ngo/en/copa-bitcoin/

I’m joined by Johnny “Delgado del Fuego,” the Peruvian-born, Charlotte-based hot sauce maker and Bitcoiner I met at the Grassroots weekend. We trace the roots of Delgado’s Fuego from family July 4th cookouts and his father’s legendary rocoto aji to award-winning farmers’ market staples, and how sharing food built real-world community around Bitcoin meetups. Johnny shares his winding Bitcoin journey—from NYC subway sticker sightings in 2015–2016 to helping lead Bitcoin Charlotte, starting Orange‑pill efforts in Peru, and partnering with Motiv Perú to foster circular Bitcoin economies. We also swap stories about caring for (and energizing) our elders, Latin American family culture, and why in-person meetups matter more than ever in a hyper-connected but isolated world.

Then we geek out on music and experience: Johnny’s first-ever Phish show at Sphere Las Vegas, the band’s Halloween “costume set” tradition, and why the Fuego era signaled reinvention and longevity. We compare flavor-over-gimmick hot sauce culture with the “prove you can take the heat” carnival of super-hots, dream up a Bitcoin x food ecosystem, and preview Spanish‑only Bitcoin events at Pubkey NYC plus Peru travel ideas—from Lima to Huanchaco’s surf scene and the upcoming Copa Bitcoin. Come for the rocoto, stay for the relationships—and maybe queue up Phish’s Llama while you sauce your next plate.