Complex Systems with Patrick McKenzie (patio11)

A deep dive into how nonprofits coordinated pressure campaigns on tech and financial firms. Short stories cover meetings, lists, and tactics used to target fundraising and platform access. The narrative tracks shifts after major protests and January 6 and questions the line between charity advocacy and political intervention.

A deep read on why bank fraud charges are prosecutors' favorite tool and how lying to a bank creates easy-to-prove cases. A walkthrough of suspicious activity reports, screening pipelines, and the Bank Secrecy Act's surveillance incentives. An analysis of how covert informant payments and fictitious shell accounts can become prosecutable financial infrastructure. A look at data products used by banks to automate enforcement.

A deep dive into how checks quietly shaped U.S. payment rails and why old paper habits still matter. The history of centralized clearing and ACH is unpacked with surprising protocol parallels. Discussion covers how checking accounts function like credit, operational holdouts to instant payments, and a bold policy attempt to eliminate federal paper checks that exposed stubborn edge cases.

A clear dive into why cash received is not always revenue. Short explanations cover SaaS subscription timing, deferred revenue, and MRR pitfalls. Playable virtual goods get treated differently than consumables, with creative accounting for swords, potions, and in‑game banks. The same timing issues appear in AI lab billing, prepaid balances, and minimum commits.

A deep read on why bank deposits are bank liabilities, not vaults of cash. An explanation of how banks hide risk under a veneer of certainty through capital waterfalls. Contemporary breakdowns like SVB and Voyager show how deposit-like instruments can suddenly fail. A look at regulatory responses, ACH plumbing risks, and why stablecoins keep running into the same fragile design problems.

A deep dive into why public payroll modernization so often collapses. Exploration of hidden rules, tolerated fraud, and why documenting payroll becomes impossible. A history of tax withholding and how employers became deputized collectors. An explanation of payroll providers, float mechanics, and how fintech daily-pay tools challenge payday lending.

A deep dive into how compliance rules spread across vendors and procurement. Discussion of layered security controls and what real audits actually test. Examination of allegations that a compliance vendor sold superficial, templated reports. Concerns about marketing claims, identical reports across firms, and where liability and accountability fit into audit systems.

An exploration of how charged-off consumer debt becomes a commodified waste stream and why accounting rules drive banks’ behavior. A look at debt portfolios sold as CSVs with no contracts and why paper correspondence can disrupt collectors’ processes. An examination of skip tracing errors, predictive dialers, templated lawsuits, and the incentives that encourage abusive collection tactics.

Philip Kiely, author and inference engineering practitioner who helped build Baseten, walks through the inference stack and real-world LLM deployment. He breaks down what engineers actually build. He explores model size tradeoffs, agentic workflows that multiply inference calls, routing between local and SOTA models, and practical harnesses for testing and scaling inference.

A deep dive into why payments were built on shared secrets and the long-term fraud trade-offs that created. Explores CVV, AVS and other stopgap measures that balance security against conversion. Traces the failures of physical tokens and EMV terminals. Shows how smartphones finally deliver scalable cryptographic continuity and why regulation and SCA changed the incentives.