Observed Signal · Aug 28, 2026 · Market Signal · Source: Castle Island Ventures · Impact: 5/5
Weekly Roundup 08/28/26 (BankChain alliance, Goat grazing hedges, SHRINCS, is maximalism over?) (EP.736)
Matt and Nic return for another week of deals and news. In this episode: Matt and Nic consider candidates for the new bad boys intro music 39 state banking associations form the BankChain alliance Blockstream researchers proposed SHRINCS, a PQ signature scheme for Bitcoin How much should depositors care about bank credit risk? Kalshi hosts a prediction market on goat grazing regulation Are trading bot agents getting good? Blockstream proposes SHRINCS for Bitcoin Zcash hits an 8-year high Treasury designates anyone helping Iran's crypto sector AI watermarking Bad boys theme song submissions: Ian's song Seth's song Content mentioned: Omid Malekan, The banking lobby's bad faith campaign to kill the Clarity Act will backfire Nic Carter, A Second and Final Eulogy for Bitcoin Maximalism Check out this episode!
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Weekly Roundup 10/02/26 (Fat Model Hypothesis, Agentic bank runs, Hester Peirce retires from the SEC, ETH 2030) (EP.742)
Matt and Nic are back with another week of news and deals. In this episode: Are OpenAI and Anthropic reenacting the Fat Protocol Hypothesis, Will AI agents cause bank runs optimizing bank balances for yield? ... Our tribute to Hester Peirce as she retires from the SEC ... Vitalik lays out his vision for Ethereum in 2030 ...
Stripe's AI 'Minions' Ship 1,300 PRs Weekly
This newsletter episode summarizes a podcast interview with Steve Kaliski about Stripe’s AI coding agents—nicknamed “minions”—which reportedly generate roughly 1,300 pull requests per week, often initiated from simple Slack interactions. Kaliski describes how investments in developer experience, cloud development environments, automated test coverage and deployment patterns make large-scale agentic coding feasible while shifting the bottleneck from coding to review and idea generation. The episode also features Hilary Gridley discussing her use of Claude Code as a personal operating system, favoring lightweight, observational automations (“anti-system system”), voice/screenshot-based prototypes, and progressive trust for agents. Topics include machine-to-machine payments for ephemeral services, isolated agent permissions, disposable single-purpose software, and practical patterns for safely integrating autonomous agents into workflows.
Block's AI for Managers, Claude Manages $50K, Monzo Exits
This newsletter issue analyses three headline items: Block’s public argument (by Jack Dorsey and Roelof Botha) that hierarchical middle management can be replaced by AI, framed against recent Block layoffs; Anthropic’s Claude reportedly operating a $50,000 trading portfolio with no human override, with practical how‑to commentary on using Claude inside Excel for financial analysis; and Monzo’s decision to withdraw from the U.S. market to prioritise European growth. The piece mixes commentary and deeper dives — including VC funding trends, startup productization in AI, and context on Revolut’s 2025 financials — to explore implications for corporate organisation, autonomous AI agents in finance, and fintech strategy.
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