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On The Brink with Castle Island

On The Brink with Castle Island

Castle Island Ventures 730 Episodes Aug 21, 2026

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.

Episodes

Weekly Roundup 08/21/26 (SALT Wyoming, SEC's Reg Crypto, Tether's big 4 audit, Crypto Privateers) (EP.735)
Weekly Roundup 08/21/26 (SALT Wyoming, SEC's Reg Crypto, Tether's big 4 audit, Crypto Privateers) (EP.735) Aug 21, 2026 33:14 Matt and Nic return for another week of news and deals. In this episode:  The boys review SALT Wyoming in Jackson Hole Why did Stripe buy Openrouter? Stripe says we have entered the Singularity People are upset about data centers The SEC proposes Reg Crypto governing token issuance The CFTC convenes a crypto roundtable in Washington FASB proposes treating stablecoins as cash equivalent under GAAP
Weekly Roundup 08/14/26 (Anti-Datacenter sentiment, dinosaur fossil investing, SEC is DIYing Clarity) (EP.734)
Weekly Roundup 08/14/26 (Anti-Datacenter sentiment, dinosaur fossil investing, SEC is DIYing Clarity) (EP.734) Aug 14, 2026 37:49 Matt and Nic are back for another week of news and deals. In this episode:  Who is the main character in AI? Why are people so mad about datacenters? Sherrod Brown is back and he's running against AI Are datacenters being built with Flock? Culturally scarce goods and dinosaurs are rallying The SEC starts to fill the gap left by the Clarity Act FinCEN ends beneficial ownership reporting The CFTC c
Weekly Roundup 08/07/26 (Coldcard hack continues, Ethereum mulls an issuance tweak, ai16z winds down, Clarity deadline looms) (EP.733)
Weekly Roundup 08/07/26 (Coldcard hack continues, Ethereum mulls an issuance tweak, ai16z winds down, Clarity deadline looms) (EP.733) Aug 7, 2026 38:15 Matt and Nic are back with more news and deals. In this episode:  Why the Coldcard hack is worse than some major exchange and DeFi hacks What the Coldcard hack told us about the need for open weight models Is self custody over? MSTR sells more Bitcoin An FBI agent steals $1m in crypto NY state sues Kalshi Ethereum considers another change to issuance Ethereum needs to resist the urge to change mo
Weekly Roundup 07/31/26 (Situational Awareness collapse, Coldcard exploit, latest on CLARITY, Visions of Bitcoin 8 years on) (EP.732)
Weekly Roundup 07/31/26 (Situational Awareness collapse, Coldcard exploit, latest on CLARITY, Visions of Bitcoin 8 years on) (EP.732) Jul 31, 2026 38:26 Matt and Nic are back for another week of news and deals. In this episode:  What the novel Hyperion tells us about AI doom Situational Awareness liquidates most of its public book after a sharp AI selloff Will Leo have a second act? Why has AI been selling off? Over 1000 BTC stored in Coldcard wallets were stolen due to bad entropy Where does self-custody go from here? What happened with Coldcard
Weekly Roundup 07/24/26 (BTC Security Consortium, Genesis' Terra trade, DAT departures, Farewell to BitMEX, Network State drama) (EP.731)
Weekly Roundup 07/24/26 (BTC Security Consortium, Genesis' Terra trade, DAT departures, Farewell to BitMEX, Network State drama) (EP.731) Jul 24, 2026 33:50 Nic and Matt are back for another week of news and deals. In this episode:  The Fat Model Thesis Are OAI and Anthropic in real trouble with Kimi? The Bitcoin Security Consortium is announced to tackle quantum risk Galaxy announces their Quantum Readiness Initiative Clarity is beleaguered in Washington Polymarket and Kalshi keep feuding The SEC settles with Coinbase over Gensler's lost text messag
Weekly Roundup 07/17/26 (Teleprompter insider trading, the AI DeFi apocalypse fizzles, NY's datacenter ban) (EP.730)
Weekly Roundup 07/17/26 (Teleprompter insider trading, the AI DeFi apocalypse fizzles, NY's datacenter ban) (EP.730) Jul 17, 2026 39:26 Matt and Nic are back with the deals and news of the week. In this episode:  Nic licks his World Cup wounds Do Bitcoin Treasury strategies make sense? Trying to make sense of Saylor's "bitcoin rating" Trump's teleprompter operator has been trading on what Trump is going to say in his speeches Why do people keep insider trading on prediction markets? Clarity Act odds are trickling down Strategy sh
Weekly Roundup 07/09/26 (BonkDAO exploit, Choke Point 2.0 extended to audit firms, Kraken v Mazars) (EP.729)
Weekly Roundup 07/09/26 (BonkDAO exploit, Choke Point 2.0 extended to audit firms, Kraken v Mazars) (EP.729) Jul 10, 2026 29:24 Matt and Nic are back with another week of news and deals. In this episode:  Strategy sells $216m worth of BTC Where does Strategy go from here with STRC? Kalshi's case faces the ban of sports contracts in NY TeraWulf signs a massive lease with Anthropic BonkDAO's legal hack Vanguard hires a head of digital assets Kraken wins arbitration against Mazars for de-auditing them in 2022 Vitalik lays ou
Weekly Roundup 07/03/26 (OpenUSD announced, Binance leaves the EU, Strategy's new framework) (EP.728)
Weekly Roundup 07/03/26 (OpenUSD announced, Binance leaves the EU, Strategy's new framework) (EP.728) Jul 3, 2026 30:29 Matt and Nic are back with another week of news and deals. In this episode:  Saylor releases Strategy's "Digital Credit Capital Framework" MSTR stabilizes for now though STRC is still discounted Is Saylor transitioning MSTR into a Bitcoin hedge fund? Is Strategy doing anything tricky with their mNAV calculation The OpenUSD consortium is announced Is the Tether and Circle duopoly broken? Can stabl
Weekly Roundup 06/26/26 (Quantum EOs, STRC's selloff, more MSTR) (EP.727)
Weekly Roundup 06/26/26 (Quantum EOs, STRC's selloff, more MSTR) (EP.727) Jun 26, 2026 40:22 Matt and Nic are back for another week of news and deals. In this episode:  Our recording snafu STRC's depeg explained Saylor's path forward Why Strategy's issue is the converts  Polymarket's questionable marketing Trump's Quantum EOs
Weekly Roundup 06/19/26 (STRC under pressure, Illinois' crypto tax, Open weight AI vs the AI boom) (EP.726)
Weekly Roundup 06/19/26 (STRC under pressure, Illinois' crypto tax, Open weight AI vs the AI boom) (EP.726) Jun 19, 2026 38:41 Matt and Nic are back for a week of news and deals. In this episode:  The Tartan Army takes over Boston Europeans are shocked that American infrastructure works STRC falls into the low $80s STRC's liquidation cascade mechanics What are Saylor's options now? Is the US right to put the brakes on Fable? Will open weight models puncture the AI boom? Are we living in a vulnerable world? Kristin Gilleb
Weekly Roundup 06/12/26 (Strategy survives, Zcash Orchard bug, the thin model hypothesis) (EP.725)
Weekly Roundup 06/12/26 (Strategy survives, Zcash Orchard bug, the thin model hypothesis) (EP.725) Jun 12, 2026 38:14 Matt and Nic are back with a new week of news and deals. In this episode:  Spanish soccer club Osasuna hedges their relegation on Kalshi Strategy shocks people by buying the dip Is Strategy sacrificing MSTR to save STRC? Saylor bolsters his cash position What factors are dragging on the BTC price? Zcash fixes a scary inflation bug SBF formally applies for a Presidential pardon The CFTC proposes b
Omid Malekan (Columbia Business School) on Private Money, Financial Systems, and Crypto in Geopolitics (EP.724)
Omid Malekan (Columbia Business School) on Private Money, Financial Systems, and Crypto in Geopolitics (EP.724) Jun 9, 2026 01:03:33 Wyatt sits down with Omid Malekan, a Professor at Columbia Business School, author of several books, and "Explainer-in-Chief" of blockchain technology. In this episode, Wyatt and Omid discuss: Why do stablecoins carry a persisent sense of being "dangerous" or "ungovernable? Are stablecoins truly private money? How do we define private money? Who owns our current banking and payment systems? Why d

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