
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

6 snips
Apr 11, 2025 • 35min
Weekly Roundup 04/11/25 (Tether’s new stablecoin, Signature, dedollarization, DoJ disbands crypto team) (EP.612)
This week tackles the intriguing topic of dedollarization and its implications for the global economy. The conversation shifts to the new SEC guidance on stablecoins and the relaxation of rules for crypto activities in banks. Tether's exploration of a US stablecoin takes center stage, while the disbanding of the Justice Department's crypto enforcement team raises eyebrows. A light-hearted segment brings amusing stories about office gadgets and wildlife encounters, juxtaposing serious financial discussions with quirky humor.

16 snips
Apr 9, 2025 • 37min
Wyatt Lonergan and Juan Lopez (Vaneck Ventures) on Stablecoin Adoption and The Institutionalization of Crypto (EP.611)
Juan Lopez from VanEck Ventures, specializing in early-stage fintech and crypto investments, joins Wyatt Lonergan to discuss the dynamic world of stablecoins. They explore the rapid growth of stablecoins and the challenges and opportunities presented in the B2B payments arena. The conversation dives into how major tech companies could transform financial transactions and the ongoing regulatory changes shaping the landscape. The duo also considers the implications for both established players and emerging challengers in the crypto market.

42 snips
Apr 7, 2025 • 29min
Hoolie Tejwani (Coinbase) on The Evolution of Coinbase Ventures (EP.610)
Hoolie Tejwani, Head of Coinbase Ventures and seasoned investor in over 500 crypto startups, joins the conversation. He discusses the evolution and impact of Coinbase Ventures, highlighting its role in shaping the crypto landscape. The intersection of cryptocurrency and AI is explored, along with the dynamics of stablecoins and decentralized finance. Tejwani also sheds light on navigating regulatory challenges and the significance of the 'Coinbase Mafia' in fostering innovation. Get ready for insights into the future of crypto investing!

Apr 4, 2025 • 36min
Weekly Roundup 04/03/25 (Circle S1, Tariffs, Galaxy settles, BitMEX pardons) (EP.609)
Matt and Nic dive deep into the implications of trade tariffs on the global market, mixing humor with keen insights. They discuss Galaxy Digital’s significant legal settlement over the Luna debacle and how it reshapes the crypto landscape. The impact of a new AI manifesto is explored, highlighting both its promise and perils. The conversation takes a dark turn into the dangers of nuclear conflict while reflecting on civilization’s past and potential future. Lastly, advancements in Bitcoin rollups and tech fundraising paint a picture of a rapidly evolving crypto world.

13 snips
Apr 2, 2025 • 53min
Alexei Zamyatin (Build on Bitcoin) on True Rollups on Bitcoin (EP.608)
In this discussion, Alexei Zamyatin, cofounder of Build on Bitcoin, dives into the evolving landscape of Bitcoin rollups. He argues whether Bitcoin can match Ethereum's rollups and breaks down how the innovative BitVM and BitVMv2 are game changers. Topics include Bitcoin's unique DeFi potential, the risks of L2s possibly overshadowing Bitcoin, and the pressing need for soft forks. Zamyatin also shares insights on BOB's roadmap for 2025, emphasizing the crucial role of technical advancements and community governance in shaping Bitcoin's future.

19 snips
Mar 28, 2025 • 32min
Weekly Roundup 03/28/25 (MiCA Stablecoins, Gamestop, Hyperliquid) (EP.607)
Matt and Nic dive into the heavy implications of the EU's MiCA rules on stablecoin launches, questioning if innovation is being stifled. The controversy surrounding Hyperliquid's exploit raises concerns about decentralization. Fidelity's interest in stablecoins and ICE's move to adopt USDC showcase an evolving financial landscape. The episode also touches on the intriguing intersection of genetic technology with business and regulations, alongside reflections on the cyclical nature of the crypto industry and its ongoing challenges.

25 snips
Mar 26, 2025 • 41min
Paolo Ardoino (Tether) on stablecoin bills, pursuing an audit, and getting to 400m users (EP.606)
Paolo Ardoino, CEO of Tether, shares insights on the stablecoin landscape and regulatory challenges. He discusses Tether's move to El Salvador and their ambition to analyze user behavior for reaching 400 million users. Ardoino highlights the impact of recent US stablecoin bills and the necessity for a Big 4 audit amid political pressures. He also addresses concerns about crypto dollarization and emphasizes Tether's strategy in diverse markets while navigating new relationships and regulations. His perspective is a blend of optimism and cautious realism.

13 snips
Mar 24, 2025 • 38min
Brian Foster on Coinbase’s wholesale business (EP.605)
Brian Foster, the Global Head of Wholesale at Coinbase, shares insights into the evolving cryptocurrency landscape. He discusses how banks and broker-dealers are enhancing their crypto strategies post-election. The conversation highlights Coinbase's pivotal role in the digital asset ETF market and their engagement with government clients. Foster also delves into the implications of recent regulatory shifts and the transformative impact of stablecoins on trading and remittances. This episode offers a fascinating look at the future of institutional investment in crypto.

5 snips
Mar 21, 2025 • 40min
Weekly Roundup 03/21/25 (Trump addresses DAS, Kraken buys NinjaTrader, FIRM act advances) (EP.604)
This week explores Trump's speech at the DAS conference, addressing cryptocurrency regulations and capital gains tax. The discussion dives into Kraken's acquisition of NinjaTrader and innovative crypto projects like tokenized gold. Historical challenges faced by IOTA and the DAO's fork bring nostalgia, while the advancement of the FIRM Act raises concerns about banking regulations. The dialogue also touches on economic strategies, inflation skepticism, and the political landscape's effect on decision-making and investment.

Mar 14, 2025 • 32min
Weekly Roundup 03/14/25 (SBR is real, Trump and Binance, CZ pardon rumors) (EP.603)
Matt and Nic are back for another week of news and deals. In this episode: The Strategic Bitcoin Reserve exists Will the government buy additional Bitcoin? What does “cost neutral” mean? What’s the deal with our cheese reserve Have Bitcoiners lost their libertarian origins? The OCC reverses their anti-crypto guidance Sentiment in crypto is at all time lows Is CZ seeking a pardon deal in exchange for a sale of Binance equity? Senate Banking votes to advance the Hagerty Stablecoin bill The banks are against interest-bearing stablecoins We recap the White House Crypto Summit Banks want to do crypto