
On The Brink with Castle Island
Hosts Matt Walsh and Nic Carter of Castle Island Ventures explore news and deals in the public blockchain space and talk to some of the leading experts in the industry. Learn more and stay up to date at CastleIsland.vc and follow on twitter @CastleIslandVC
Latest episodes

8 snips
May 9, 2025 • 28min
Weekly Roundup 05/09/25 (GENIUS stalls, Coinbase buys Deribit, Bessent on stables) (EP.622)
This week dives into the dramatic collapse of the GENIUS Act and its implications on the crypto landscape. Coinbase's strategic acquisition of Deribit takes center stage, reshaping options trading. The hosts also marvel at the election of a new Pope, tying faith to finance in an unexpected twist. Discussions include the potential of stablecoins reaching $2 trillion, while Stripe enters the scene with stablecoin financial accounts. Additionally, the SEC's interest in a sandbox for tokenized securities stirs curiosity about the future of regulation.

23 snips
May 8, 2025 • 35min
Adam Healy (Station 70) and Josh Schwartz (Fordefi) on failover MPC wallets (EP.621)
Adam Healy, CEO of Station 70, and Josh Schwartz, CEO of Fordefi, delve into the future of cryptocurrency wallets. They kick off by discussing their innovative collaboration on failover MPC wallets designed for disaster recovery. The duo highlights the growing need for advanced security measures in the crypto landscape, especially following recent incidents. They emphasize the importance of disaster recovery tools, user control over keys, and the transformation of traditional banking practices to secure digital assets in this evolving market.

9 snips
May 7, 2025 • 41min
David Taylor (Etherfuse) on Non-USD Stablecoins (EP.620)
David Taylor, Founder of Etherfuse, discusses the exciting world of non-US stablecoins and their potential in emerging markets like Mexico. He shares insights on shaping regulatory frameworks and the innovative strategies behind creating interest-bearing stablecoins. The conversation dives into the clash between traditional finance and decentralized finance (DeFi), highlighting the growing need for efficient remittance solutions. Taylor also outlines Etherfuse's ambitious plans for onboarding local stablecoins, aiming to enhance liquidity in the Forex and blockchain ecosystem.

18 snips
May 5, 2025 • 40min
Justin and Hannah (Asymmetry Finance) on Stablecoins, Yield, & Risk in DeFi (EP.619)
Hannah JoJo and Justin Garland, co-founders of Asymmetry Finance, delve into the fascinating evolution of yield in decentralized finance (DeFi). With backgrounds in risk analysis and software engineering, they discuss the importance of assessing risks in high-yield products and the rise of synthetic stablecoins. They share valuable insights on investor dynamics, including psychological barriers that influence choices in DeFi. The duo also explores the transformative power of Ethereum, emphasizing the need for transparency and user-friendly solutions in the crypto space.

May 2, 2025 • 34min
Weekly Roundup 05/02/25 (OP_RETURN wars, Mastercard and Visa push stables, quantum revisited) (EP.618)
Matt and Nic dive into the fascinating intersection of stablecoins and credit cards, pondering if stablecoins could disrupt traditional payment methods. They examine the potential threats quantum computing poses to Bitcoin's security, discussing urgent measures that need to be taken. The duo also highlights the ongoing debates among Bitcoin purists versus the growing commercial interests in the space. Scandals involving Movement Labs add a layer of controversy, while recent developments from Circle and regulatory efforts showcase the complexities in the evolving crypto landscape.

6 snips
Apr 29, 2025 • 31min
Kedian Sun (Level Money) on Stablecoin Expansion in DeFi (EP.617)
In this discussion, Kedian Sun, founder of Level Money, dives deep into the rapidly evolving world of stablecoins in DeFi. He contrasts fiat-backed stablecoins with alternative assets and navigates their unique roles in decentralized finance. The conversation sheds light on LevelUSD and its aspirations within the Ethereum ecosystem, revealing the challenges of compliance and transaction costs. Kedian also highlights how bear markets can spark innovation, catalyzing unique opportunities for growth and product development in the crypto landscape.

15 snips
Apr 25, 2025 • 27min
Weekly Roundup 04/25/25 (Decoupling, Fed Rescinds guidance, 21 Capital) (EP.616)
Matt and Nic are back for another week of news and deals. In this episode: Is Bitcoin decoupling? The Fed rescinds anti-crypto letters from 2022 and 2023 Upexi raises $100m PIPE to invest in Solana Cantor, Tether, Softbank and Bitfinex inject $3.6b into 21 Capital, a Bitcoin acquisition vehicle Bitcoin ETFs versus bitcoin acquisition companies Trump is hosting a dinner for $TRUMP holders Charles Schwab wants to launch crypto trading Citi thinks stablecoins could reach $3.7T in supply by 2030

6 snips
Apr 18, 2025 • 39min
Weekly Roundup 04/18/25 (Signature Postmortem, Mantra collapse, Powell on stablecoins) (EP.615)
Matt and Nic are back with another week of news and deals. In this episode: We recap Nic’s article on why Signature collapsed Crypto exchange OKX announced their plans to expand to the US Kraken announced that US equities are now supported on the exchange MANTRA, a layer 1 network focused on RWAs, saw the price of its native token crash 90% in a matter of hours Global Payments agreed to acquire Worldpay, a payments processor, for $24 billion from FIS and private equity firm GTCR The US Department of Homeland Security has launched a probe into Anchorage, the digital asset custodian, related to the company's AML polices Jerome Powell reiterates his support for stablecoin legislation Strategy (and others) buy more Bitcoin Content mentioned in this episode: Galaxy Digital, The State of Crypto Lending Nic Carter in Piratewires, Signature Didn’t Have to Die, Either

10 snips
Apr 16, 2025 • 32min
Fred Hsu and Michael Ho (D3) on Creating Efficient Domain Name Markets (EP.614)
Fred Hsu, CEO and co-founder of D3, and Michael Ho, co-founder and CBO, discuss the evolving domain name market. They explore the challenges of legacy systems and the potential of blockchain to revolutionize domain transactions. Highlights include the surge in AI-driven domain registrations and the need for better portfolio management. The duo also shares insights on creating a comprehensive naming system and the shift towards decentralized finance in domain trading, positioning D3 as a key player in the digital economy.

10 snips
Apr 15, 2025 • 43min
Yuval Rooz and Eric Saraniecki (Digital Asset) on the Canton Network (EP.613)
Yuval Rooz and Eric Saraniecki, co-founders of Digital Asset, share their insights on revolutionizing blockchain finance. They discuss the differences between permissioned and permissionless chains, emphasizing on-chain privacy's role in collateral management. They explore how the Canton Network enables institutional use cases and enhances asset tokenization. The conversation also touches on the importance of robust motion in attracting TradFi and crypto players, and the shifting dynamics of privacy in cryptocurrency, highlighting its impact on adoption.