Marek Narozniak is a Polish physicist who works on a MimbleWimble implementation that can get added to Bitcoin via extension blocks to become a privacy layer. He also specializes in quantum computing, and busts some FUD about their threat.

Time stamps:

Introduction to Mimblewimble and Grin (00:00:40)

The Privacy Model of Mimblewimble (00:02:07)

What is Mimblewimble and Grin? (00:03:47)

Scalability and Growth of Grin (00:05:18)

Marek's Interest in Grin and Quantum Computing (00:07:16)

Challenges and Funding of Grin Development (00:13:36)

CoinJoin on Bitcoin (00:15:41)

CoinJoin and Privacy in Mimblewimble (00:16:49)

The Relevance of Mimblewimble and Grin to Bitcoin (00:22:18)

Bitcoin Philosophy (00:24:15)

Scalability and Design of Grin (00:25:37)

Compatibility with Bitcoin (00:27:31)

Quantum Computing and Bitcoin (00:38:31)

Quantum Resistance in Blockchain Networks (00:45:02)

Node Software and Wallet Connectivity (00:46:27)

Running a Node and Raspberry Pi (00:47:49)

Quantum Computing and Qubits (00:50:02)

Quantum Computers and Bitcoin (00:52:07)

Bitcoin and Cryptography (00:52:42)

Bitcoin and Investment (00:56:01)

Bitcoin Adoption and Use Cases (00:57:31)

Polish Bitcoin Association and Government Perception (01:02:46)

Government Digital Signature and Privacy (01:04:32)

Privacy and Bitcoin (01:05:44)