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On The Brink with Castle Island

Castle Island Ventures

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

business investing

All Episodes

33:42

Weekly Roundup 03/20/26 (Vanity Fair fiasco, SEC...

On The Brink with Castle Island ·

2026/03/20

Matt and Nic are back for another week of news and deals. In this episode: What happened with the disastrous Vanity Fair photoshoot Kraken postpones their IPO The SEC releases long-awaited guidance distinguishing securities from commodities A compromise may be developing over stablecoin yield The SEC drops their case against Nader Al-Naji Phantom gets a no-action letter from the CFTC Tempo mainnet launches Some regional banks are tokenizing deposits Will agentic payments be a thing Q-day is

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32:20

Weekly Roundup 03/13/26 (SEC vs CFTC detente,...

On The Brink with Castle Island ·

2026/03/13

Matt and Nic are back for another week of news and deals. In this episode: Are we in an oil crisis and energy shock Binance is suing the WSJ for defamation NASDAQ and Kraken partner to bring stocks on chain The SEC and CFTC issue an MOU Prediction markets need surveillance Across is considering converting their token into equity The White House's cyber strategy The banks are still fighting about stablecoin yield What risks do stablecoins actually pose to banks?

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31:36

Weekly Roundup 03/26/26 (Trump supports stablecoin...

On The Brink with Castle Island ·

2026/03/06

Matt and Nic are back for another week of news and deals. In this episode: What Dario Amodei and SBF have in common Trump wades in to the market structure debate and asks the banks to come to the table Why stablecoins are not like banks Kraken Financial gets a skinny Fed master account Visa and Bridge are rolling out stablecoin-linked cards The FBI arrests a suspect accused of stealing $46m in BTC from the US marshalls Morgan Stanley is coming out with their own Bitcoin ETF The Aave token

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15:11

Alex Wilson (Cyclops) on Crypto and Stablecoin...

On The Brink with Castle Island ·

2026/03/04

Alex Wilson, Co-Founder and CEO of Cyclops, joins the show. In this episode: Alex's background running The Giving Block and the company's acquisition by Shift4 Difficulty in enabling stablecoin solutions when utilizing existing providers while inside of Shift4 Backgrounds of the founding team at Cyclops Regulatory strategy for Cyclops Products: Pay with Crypto (POS, E-Com), Stablecoin Settlement (for Merchants vs. Wire or ACH), Stablecoin Payouts (Payroll, Contractor Payments, Remittance) Key

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31:16

Dana Syracuse and Josh Boehm (Paul Hastings) on the...

On The Brink with Castle Island ·

2026/03/03

Dana Syracuse and Josh Boehm of Paul Hastings join the show. In this episode we discuss: The OCC Charter process how digital asset companies are pursuing the federal path The aftermath of the Genius Act passage and the rulemaking process for this law Considerations for Federal vs. State charter pathways The market structure bill Learn more about Paul Hastings

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34:28

Weekly Roundup 02/27/26 (Insider Predicting, OCC...

On The Brink with Castle Island ·

2026/02/27

Matt and Nic are back with another week of news and deals. In this episode: Kalshi has detected and banned two accounts for insider trading Is Polymarket going to have to add KYC? Is there a tradeoff between informational efficiency and market fairness The OCC de facto bans stablecoin yield in its rulemaking around GENIUS Meta is considering partnering with a stablecoin issuer Stripe is bullish in their annual report ZachXBT determines that Axiom employees have been abusing the platform Terraform

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31:39

Weekly Roundup 02/20/26 (CFTC claims Prediction...

On The Brink with Castle Island ·

2026/02/20

Matt and Nic are back with another week of news and deals. In this episode: Crypto VC funds have some dry powder CFTC chair Mike Selig asserts jurisdiction over prediction markets relative to the States Is Kalshi more reliable than interest rate futures? The CLARITY Act inches closer to passing Shake up at Gemini OpenClaw agents are going to start phishing crypto users Bitwise aims to launch prediction market ETFs Bridge gets their OCC charter Hyperliquid launches a lobbying arm DAT hangover

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38:24

Raj Parekh (Monad Foundation) on Stablecoins and The...

On The Brink with Castle Island ·

2026/02/18

Wyatt sits down with Raj Parekh, Head of Stablecoins and Payments at Monad. In this episode: Will enterprises build out their own stablecoin solutions? Will card payments continue to grow, or be challenged by other forms of payments? What is the role of governments in driving whether stablecoin adoption will continue, accelerate, or decelerate? How does Monad work with leading financial organizations? Where do you see opportunity for novel tech solutions around stablecoins? Will there be many

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42:37

Weekly Roundup 02/13/26 (SBF wants a retrial, taking...

On The Brink with Castle Island ·

2026/02/13

Matt and Nic are back with another week of news and deals. In this episode: Matt reflects on the Patriots season We review the Superbowl Ads Looking forward to the OpenAI wearable Is "something big happening" in AI? Does crypto accelerate the rise of malicious AI? Are all communications networks going to break down in 90 days? SBF wants a new trial Blackrock adds BUIDL to Uniswap Blockfills suspends withdrawals Robinhood is internalizing their prediction market product The stablecoin yield issue

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36:52

Bhavin Vaid (Birch Hill) on Better Markets for...

On The Brink with Castle Island ·

2026/02/11

Wyatt sits down with Bhavin, co-founder of Birch Hill to chat about the tokenized asset and DeFi market broadly. In this episode: Who is assessing whether cryptoassets are safe in DeFi today? Who is assessing risk and ensuring assets are solvent and not fraudulent? How have these standards been set and how are they evolving? What is a risk curator, how do risk curators make money, and what is their role? Is it the responsibility of protocols, curators, wallets, or someone else to protect users from

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41:38

Weekly Roundup 02/06/26 (Bitcoin bloodbath, Digesting...

On The Brink with Castle Island ·

2026/02/06

Matt and Nic are back with another week of news and deals. In this episode: Bitcoin grapples with the fallout of the Epstein Emails Did Jeffrey Epstein influence Bitcoin development? Is Bhutan selling their Bitcoin? Do Bitcoin devs care about quantum? Is Bitcoin Core under the influence with sophons Kyle Samani steps back from Multicoin What Samani's departure means for crypto Is web3 dead forever? Vitalik starts second-guessing the L2-centric roadmap Tether is trading at a slight discount

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38:34

Weekly Roundup 01/30/26 (Fidelity's FIDD, Gold rally,...

On The Brink with Castle Island ·

2026/01/30

Matt and Nic are back with another week of news and deals. In this episode: Matt is heated about the Belichick HoF vote Fidelity launches a stablecoin FIDD on Ethereum Market structure passes Senate Ag Cmte The White House crypto council is being revived to find a compromise on stablecoin yield Fairshake has another war chest for the midterms Do stablecoins cause bank deposit contraction? Tether has 140 tons of gold now Why is Bitcoin not participating in the "debasement" trade? Is gold at risk

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36:36

Weekly Roundup 01/23/26 (CLARITY stalls, Iran's USDT...

On The Brink with Castle Island ·

2026/01/23

Nic and Matt are back for another week of news and deals. In this episode: There's a big storm coming Matt's playoff picks Farcaster sells to Neynar Is this the nail in the coffin for Web3Social? Where Farcaster went wrong BitGo goes public NYSE is building a tokenized security trading platform Are we looping back around to enterprise blockchains? A MA judge has issued an injunction against Kalshi Jeffries drops Bitcoin from its model portfolio over quantum risk Coinbase launches an advisory board

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44:32

Weekly Roundup 01/16/26 (CLARITY problems, InfoFi...

On The Brink with Castle Island ·

2026/01/16

Matt and Nic are back after a week off. In this episode: The Clarity market structure bill markup is delayed for now Coinbase backs out of supporting Clarity The bank lobby is trying to torpedo Clarity Kontigo is accused of ignoring sanctions X changes its API to block InfoFi California's wealth tax has backfired already BitMine invests $200m into Mr Beast's company Why tokenized deposits aren't as interesting as stablecoins Content mentioned in this episode: Jason Mikula, Kontigo: Y

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39:24

Wyatt & Jake Lynch on Onchain Financial Markets (EP.695)

On The Brink with Castle Island ·

2026/01/12

Wyatt, Henry, and Jake recently put out a report called "Total Value Lost", exploring how best to assess the value of various DeFi markets - starting with lending markets. This episode is a continuation of that conversation, exploring what carries value in DeFi going forward, particularly on the back of a shaky market period. This discussion covers: Where does the recent, ongoing market selloff leave us? What metrics matter for onchain markets? What market dynamics contributed to the October 10

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37:25

Weekly Roundup 01/02/26 (2026 predictions, wealth...

On The Brink with Castle Island ·

2026/01/02

Matt and Nic are back for the first OTB show of 2026. In this episode: Matt's ice rink adventures The House issues a draft of the PARITY Act The trouble with wealth taxes DATs continue to bleed out We talk about Nic's fiction story Predictions for 2026 Is there a secret exchange insolvency? What constitutes insider trading for prediction markets? Is the four year cycle finally over? Is it time to try socialfi again? Kickstarter snafus Content mentioned in this episode: Nic Carter, Trillion

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45:40

2025 Highlights and 2026 Predictions with Blockchain...

On The Brink with Castle Island ·

2025/12/30

Matthew Le Merle and Mitch Mechigian of Blockchain Coinvestors join the show. In this episode we discuss: The top 5 themes of 2025 for the blockchain industry 2026 predictions and key themes to monitor To learn more about Blockchain Coinvestors visit fifthera.com/blockchain

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42:20

Weekly Roundup 12/19/25 (Quantum FUD, CLARITY markup,...

On The Brink with Castle Island ·

2025/12/19

Matt and Nic are back for more deals and news. In this episode: Secret exchange insolvency rumors Caroline Ellison is free David Sacks says CLARITY is getting a markup The Fed rescinds their 2023 Novel Activities Supervision program Insolvent exchange prediction markets Visa's stablecoin advisory business JPM launches a tokenized Treasury fund MONY Quantum FUD Why Quantum might be a surprise Bitwise 2026 predictions The four year cycle is over Grabby aliens and the Dark Forest Content mentioned

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38:59

Corn (Yearn Finance) on the Evolution of DeFi...

On The Brink with Castle Island ·

2025/12/17

Henry sits down with Corn, head of business development at Yearn Finance, for a conversation about the evolution and current state of defi. In this episode: The history of defi from 2020 to today, and how the TerraLuna crash impacted the market How incentive mechanisms in defi have changed in 2025 What caused the collapse of xUSD and Stream Finance? What is the role of risk curators in defi? The state of onchain cybersecurity and recent hacks What is the appetite for defi from non-crypto users and

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37:34

Weekly Roundup 12/12/25 (Do Kwon sentenced, DTC no...

On The Brink with Castle Island ·

2025/12/12

Matt and Nic are back with more news and deals. In this episode: CIV grows the team Nic does not regret 8 years in crypto People are getting blackpilled about crypto Does speculation in crypto have positive externalities? Matt has never seen LOTR Will web3 ever come back? The OCC lets banks broker crypto trades The Bitwise 10 lists Rushi Manche returns with a fund Circle is launching a private stablecoin The DTC gets a no action letter from the SEC to settle tokenized securities We do a Terra/Luna

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