Paul Sztorc (Drivechain) on Bitcoin Security Budget and the Importance Merge Mining (EP.280)
On The Brink with Castle Island
Release Date: 01/31/2022
Weekly Roundup 06/06/25 (Circle IPO, Singapore rules, Trump wallet?) (EP.632)
On The Brink with Castle Island
Matt and Nic are back for another week of news and deals. In this episode: Circle goes public and has an explosive first day The IPO window is open Circle’s vision for CPN is launching a token Will cannibalize Solana? JPM will let clients use Bitcoin ETFs as collateral Strategy introduces new offerings Magic Eden’s strange Trump wallet app announcement Truth Social Bitcoin ETF A K Pop Bitcoin access vehicle Korea’s cultural renaissance Singapore’s abrupt change in posture
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Isha Varshney (Celo) on Stablecoin Adoption Across Markets (EP.631)
On The Brink with Castle Island
Wyatt sits down with from the to talk stablecoins. Covered in this episode: Payments in Kenya and Sub-Saharan Africa Stablecoin usage and USDT The future of non-stable tokens
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Weekly Roundup 05/30/25 (Bitcoin Access Vehicles, GME buys BTC, Pangea Fund) (EP.630)
On The Brink with Castle Island
Matt and Nic are back with another week of news and deals. In this episode: Warning signs for the Bitcoin access vehicles? Has Bitcoin lost the MoE battle? Is OCP 2.0 over? The Dept of Labor rescinds their anti-crypto 401k guidance Cantor Fitzgerald is launching a bitcoin/gold fund Is it mathematically possible to give Bitcoin upside and gold downside? Content mentioned:
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Anthony Yim (Artemis) on Stablecoin Payments from the Ground Up (EP.629)
On The Brink with Castle Island
We sit down with Anthony Yim, cofounder, to talk about the from Artemis, CIV, and Dragonfly, providing brand new estimates of stablecoin payments volume. In this episode: Why we decided to work on the new report How we obtained the estimates Why we decided to put together a bottom-up estimate Stablecoin b2b volumes compared to traditional b2b How do you measure stablecoin transactions? Download the report at
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Markus Franke and Denney Kwok (Mento Labs) on Stablecoins for FX (EP.628)
On The Brink with Castle Island
and from join the show. In this episode: Non-USD stablecoins On-chain FX Microlending and financing for emerging markets
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Weekly Roundup 05/23/25 (Genius Cloture, Sui hack, $Trump dinner) (EP.627)
On The Brink with Castle Island
Matt and Nic are back for another week of news and deals. In this episode: Trump’s crypto dinner reviewed Bitcoin access vehicles NYT stablecoin coverage Sui is hacked and censors the blockchain Kraken is launching tokenized stocks Circle in acquisition talks The GENIUS Act passes Cloture in the Senate Hong Kong passes stablecoin legislation
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Andrew MacKenzie (Agant) on British Pound Stablecoins (EP.626)
On The Brink with Castle Island
Wyatt sits down with , founder of the issuer of GBPA, a pound sterling stablecoin. In this episode: The potential emergence of non-USD stablecoins The prospect of a GBP-backed stablecoin The British crypto regulatory environment How global financial institutions are positioning around stablecoins
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Weekly Roundup 05/16/25 (GENIUS is back, Coinbase data breach, Big Tech stables) (EP.625)
On The Brink with Castle Island
Matt and Nic are back with another week of news and deals. In this episode: Why is Boston such a good sports city? Price inflation in dinosaur skeletons Cryptopunks IP is sold Machinsky is sentenced Nakamoto Holdings launches Meta wants to add stablecoins to its platforms Exchanges are honeypots for KYC data Coinbase suffers a data breach The GENIUS act is going to a vote next week GENIUS act new provisions More Movement shenanigans Thailand is launching a $150m crypto token Content mentioned in this episode: Tuongvy Le and Austin Campbell published a paper, "", which...
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Alex Cutler (Aerodrome) on DeFi’s Next Steps (EP.624)
On The Brink with Castle Island
Wyatt sits down with Alex Cutler, founder of for another episode in our stablefi series. In this episode: DEX trading advantages Building on-chain FX DeFi as a backbone
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TN (Pendle) on Stable Yield (EP.623)
On The Brink with Castle Island
Wyatt sits down with TN, cofounder of . Covered in this episode: How Pendle works The evolution from alt yield to stable yield DeFi's future core assets
info_outlineVeteran Bitcoin commentator and inventor of Drivechains Paul Sztorc joins the show to talk Bitcoin's sustainability and the role of merged mined side chains. In this episode:
- Why Paul is the ‘Steely Dan’ of Bitcoin
- Revisiting ‘Measuring decentralization’
- Revisiting Paul’s argument on Proof of Stake being veiled PoW
- Why you should roll your own statistics
- Concentration of power in miners and mining pools
- Is PoW worthless if it isn’t challenged?
- How Bitcoin energy FUD is based on neo-malthusianism
- The Julian Simon / Paul Ehrlich wager
- Why none of our resources are finite
- How climate change diplomacy is neo-colonial
- Why and when innovation happens
- Why Paul is a critic of Bitcoin development culture
- Paul’s critique of Stock to Flow
- Why Bitcoin culture is static
- Why Bitcoin needs more satire
- Bitcoin fees are 80-100x less than those of Ethereum
- Why BTC fees are not sustainably high
- Why Bitcoin fees and security budget need to grow over time
- Can you just wait for more confirmations if security spend declines
- Are fees destined to be effectively 0 through the creation of more blockspace?
- The history of Drivechains /BIP300
- Does merge mining make it more expensive to run a node?
- Do we know how to upgrade Bitcoin Core today?
- The relevance of sidechains and merge mining to Bitcoin today
- Was Satoshi into altcoins?
- Would more sidechain development have inhibited the growth of Ethereum?
- Does BIP300 solve the problem of the Bitcoin security budget?
- Why you can’t reduce blockspace to increase security budget?
- Update on Drivechains
Content mentioned in this episode:
- Truthcoin, Security Budget in the Long Run
- Truthcoin, Security Budget II, Low Fees, and Merged Mining
- Truthcoin, Measuring Decentralization
- Truthcoin, Nothing is Cheaper than Proof of Work
- All about Drivechains/ Bip300/301
Sponsor notes:
- Fireblocks is an enterprise-grade platform delivering a secure infrastructure for moving, storing, and issuing digital assets. Learn more at fireblocks.com