All Episodes

October 10, 2025 75 mins

In this episode of Crazy Wisdom, host Stewart Alsop speaks with Paul Sztorc, CEO of Layer2 Labs, about Bitcoin’s evolution, the limitations of the Lightning Network, and how his ideas for drivechains and merge-mined sidechains could transform scalability and privacy on the Bitcoin network. They cover everything from Zcash’s zero-knowledge proofs and “moon math” to the block size wars, sound money, and the economic realities behind crypto hype cycles. Paul also explains his projects like Zside and Thunder, which aim to bring features like Zcash-style privacy and high-speed transactions to Bitcoin. Listeners can try Layer2 Labs’ software or learn more at layer2labs.com/download.


Check out this GPT we trained on the conversation

Timestamps

00:00 Stewart Alsop opens with Paul Sztorc from Layer2 Labs, discussing the connection between Bitcoin and Zcash and how privacy could be added through zero-knowledge proofs.
05:00 Paul critiques early Layer 2s like Rootstock and Lightning, calling many “not real” or custodial, and compares the current scene to the .com bubble.
10:00 They explore media hype, Silicon Valley culture, and crypto’s cycles of optimism and collapse, mentioning Theranos, FTX, and fake-it-till-you-make-it culture.
15:00 Conversation shifts to sound money, government spending, and how Bitcoin could improve fiscal responsibility, referencing Milton Friedman’s ideas.
20:00 Paul questions Bitcoin treasury companies like MicroStrategy, explaining flawed incentives and better direct ownership logic.
25:00 They move into geopolitics and The Sovereign Individual, discussing borders, state control, and the future of digital sovereignty.
30:00 Paul explains zero-knowledge proofs, Zcash’s “moon math,” and the evolution from sapling to Halo 2 for better privacy.
35:00 The topic turns to drivechains, BIP300, and Layer2 Labs’ projects like Zside and Thunder, built for real Bitcoin scalability.
40:00 Paul explains why Lightning fails, liquidity limits, and why true scaling requires optional L2s with large block capacity.
45:00 They discuss the block size war, merge mining, and how miners and nodes interact in Bitcoin’s structure.
50:00 Paul breaks down the Merkle tree, block headers, and SHA-256 puzzles miners race to solve for proof-of-work.
55:00 The episode closes with how L1–L2 coordination works, the mechanics of slow withdrawals, and secondary markets in drivechains.

Key Insights

  1. Bitcoin’s privacy gap and Zcash’s influence: Paul Sztorc begins by explaining how Bitcoin lacks true privacy since senders, receivers, and amounts are visible on-chain. He describes Zcash as a model for achieving anonymity through zero-knowledge proofs and explains how Layer2 Labs aims to bring that same level of privacy to Bitcoin without introducing a new altcoin or token.
  2. The failure of current Layer 2 solutions: Paul argues that existing Bitcoin Layer 2s like Lightning and Rootstock are flawed—either custodial, inefficient, or deceptive. He compares today’s crypto landscape to the dot-com bubble, full of overhyped projects and scams that will collapse before the genuine solutions survive.
  3. Sound money and political accountability: The discussion expands beyond technology to economics, as Paul highlights how unsustainable government debt and spending distort incentives. He believes Bitcoin could restore discipline to fiscal systems by forcing real accounting and limiting the political capacity to inflate or borrow endlessly.
  4. Corporate Bitcoin strategies are often misguided: Paul criticizes companies like MicroStrategy for treating Bitcoin as a speculative treasury asset instead of using it for real utility. He argues that investors should just buy Bitcoin directly rather than buy shares in companies that hold it, since intermediaries introduce unnecessary risk, fees, and opacity.
  5. Drivechains as Bitcoin’s missing scalability link: Sztorc presents drivechains, outlined in his proposal BIP300, as the practical way to scale Bitcoin. Drivechains allow multiple Layer 2s to exist simultaneously, each optimized for specific features like privacy, larger blocks, or smart contracts, all while using the same 21 million BTC.
  6. Lightning Network’s structural limitations: Paul dismantles Lightning’s core assumptions, pointing out that it cannot scale globally because each channel requires on-chain transactions and constant liquidity maintenance. He calls L
Mark as Played

Advertise With Us

Popular Podcasts

Stuff You Should Know
Ruthie's Table 4

Ruthie's Table 4

For more than 30 years The River Cafe in London, has been the home-from-home of artists, architects, designers, actors, collectors, writers, activists, and politicians. Michael Caine, Glenn Close, JJ Abrams, Steve McQueen, Victoria and David Beckham, and Lily Allen, are just some of the people who love to call The River Cafe home. On River Cafe Table 4, Rogers sits down with her customers—who have become friends—to talk about food memories. Table 4 explores how food impacts every aspect of our lives. “Foods is politics, food is cultural, food is how you express love, food is about your heritage, it defines who you and who you want to be,” says Rogers. Each week, Rogers invites her guest to reminisce about family suppers and first dates, what they cook, how they eat when performing, the restaurants they choose, and what food they seek when they need comfort. And to punctuate each episode of Table 4, guests such as Ralph Fiennes, Emily Blunt, and Alfonso Cuarón, read their favourite recipe from one of the best-selling River Cafe cookbooks. Table 4 itself, is situated near The River Cafe’s open kitchen, close to the bright pink wood-fired oven and next to the glossy yellow pass, where Ruthie oversees the restaurant. You are invited to take a seat at this intimate table and join the conversation. For more information, recipes, and ingredients, go to https://shoptherivercafe.co.uk/ Web: https://rivercafe.co.uk/ Instagram: www.instagram.com/therivercafelondon/ Facebook: https://en-gb.facebook.com/therivercafelondon/ For more podcasts from iHeartRadio, visit the iheartradio app, apple podcasts, or wherever you listen to your favorite shows. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

Dateline NBC

Dateline NBC

Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com

Music, radio and podcasts, all free. Listen online or download the iHeart App.

Connect

© 2025 iHeartMedia, Inc.