Complex Systems with Patrick McKenzie (patio11)

Patrick McKenzie reads from his latest Bits About Money essay, walking through why bank fraud charges are a prosecutor's favorite tool, how the Bank Secrecy Act's surveillance regime is designed to force criminals into impossible tradeoffs, and why lying to a bank is one of the easiest crimes to prove. He then applies that framework to the April 2026 DOJ indictment of the Southern Poverty Law Center, tracing how a covert informant-payment scheme run through fictitious shell entities to become a near-textbook bank fraud case. Part 2 releases next week.
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Full transcript available here: www.complexsystemspodcast.com/splc-financial-infrastructure/
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Presenting Sponsors: Mercury, Granola, & Meter

Complex Systems is presented by Mercury—radically better banking for founders. Mercury offers the best wire experience anywhere: fast, reliable, and free for domestic U.S. wires, so you can stay focused on growing your business. Apply online in minutes at mercury.com.

If meetings consistently leave you with hazy action items and lost context, Granola handles the transcription so you can actually participate and gives you searchable notes afterward. Try it free at granola.ai/complexsystems with code COMPLEXSYSTEMS

Networking infrastructure has a way of accumulating technical debt faster than almost anything else in IT. Meter handles the full stack (wired, wireless, and cellular) as a single integrated solution: designed, deployed, and managed end-to-end so there's only one vendor to call when something goes wrong. Visit meter.com/complexsystems to book a demo.

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Links:
Bits About Money, Notes on a non-profit indicted for bank fraud https://www.bitsaboutmoney.com/archive/nonprofit-indicted-bank-fraud/
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Timestamps:
(00:00) Intro
(02:43) The strategic logic of bank fraud charges in white collar indictments
(05:47) Some worked examples of this in white-collar prosecutions
(10:49) Criminal law textbooks published on the Internet
(12:22) FFIEC BSA/AML Examination Manual
(19:07) A textbook prosecution of bank fraud in many respects
(27:48) This written communication is a succinct confession to bank fraud.
(32:27) Data products and mechanistic decisioning

Patrick McKenzie (patio11) reads his classic Bits about Money essay on how checks shaped the entire American payments infrastructure, from the origins of ACH to why a standard US bank account is, technically, a credit product. He then examines what happened when DOGE tried, via Executive Order 14247, to eliminate federal paper check disbursements by September 2025. The carve-outs Treasury eventually had to make map almost exactly onto the essay's original argument. Checks are the honey badger of payments: the numbers keep dwindling, but the edge cases are irreducible, and the second-best pathway for reaching them doesn't really exist yet.
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Full transcript available here: www.complexsystemspodcast.com/checks/
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Presenting Sponsors: Mercury & Granola

Complex Systems is presented by Mercury—radically better banking for founders. Mercury offers the best wire experience anywhere: fast, reliable, and free for domestic U.S. wires, so you can stay focused on growing your business. Apply online in minutes at mercury.com.

If meetings consistently leave you with hazy action items and lost context, Granola handles the transcription so you can actually participate and gives you searchable notes afterward. Try it free at granola.ai/complexsystems with code COMPLEXSYSTEMS
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Links:
The Long Shadow of Checks: https://www.bitsaboutmoney.com/archive/the-long-shadow-of-checks/ 
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Timestamps:
(00:00) Intro
(01:12) A brief digression for people who use functioning payment forms
(02:45) Check settlement in the pre-computer era
(07:28) Some funny consequences of checks underpinning everything
(13:20) Money in transit
(14:42) Sponsors: Mercury | Granola
(17:56) Money in transit (part 2)
(21:12) Deposit accounts and their discontents
(23:25) The DOGE postscript
(29:03) Honey Badger Jingle

Patrick McKenzie (patio11) reads his classic Bits about Money essay explaining why revenue recognition in software is more complicated than most engineers, founders, and financial reporters think. The essay covers the accounting rules behind SaaS subscriptions, the deferred revenue problem that surprised him when he sold his own companies, and the surprisingly intricate standards governing virtual goods in mobile games. He then turns to AI labs, where rapid revenue growth has prompted questions about whether the numbers mean what they seem. They mostly do, but understanding why requires knowing the difference between bookings, deferred revenue, and a minimum commit.
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Full transcript available here: www.complexsystemspodcast.com/cash-received-is-not-revenue-earned/
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Presenting Sponsors: Mercury & Granola

Complex Systems is presented by Mercury—radically better banking for founders. Mercury offers the best wire experience anywhere: fast, reliable, and free for domestic U.S. wires, so you can stay focused on growing your business. Apply online in minutes at mercury.com.

If meetings consistently leave you with hazy action items and lost context, Granola handles the transcription so you can actually participate and gives you searchable notes afterward. Try it free at granola.ai/complexsystems with code COMPLEXSYSTEMS
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Links:
Accounting for SaaS and swords: https://www.bitsaboutmoney.com/archive/accounting-for-saas-and-swords/ 
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Timestamps:
(00:00) Intro
(00:56) Accounting for SaaS and swords
(03:22) Why revenue recognition matters
(05:49) Revenue recognition in SaaS
(09:54) Revenue recognition in virtual goods
(12:52) Accounting for potions
(13:24) Accounting for swords
(14:56) Sponsors: Mercury | Granola
(18:34) Accounting for swords (cont’d)
(20:49) Game mechanics as accounting optimizations
(22:10) So about that goblin
(23:25) Back to the real world
(25:00) How this applies to AI labs
(32:48) Wrap

Patrick McKenzie (patio11) reads his classic Bits About Money essay on why your bank deposit is not what you think it is. He explains the capital stack that makes deposits appear riskless while funding genuinely risky businesses, and why the "no questions asked" property of money took the United States roughly a hundred years to engineer.

Patrick updates the essay with commentary on SVB's collapse, the Voyager collapse and emergency injunctions about the finer points of ACH plumbing, and the GENIUS Act's stablecoin interest ban. He argues that crypto keeps rediscovering the same hard truth: things that behave like deposits without being deposits eventually break. When they break, they will break other structures they have wormed into, and they will tend to have wormed into a lot, because deposits are extremely useful and are perceived to never break.
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Full transcript available here: www.complexsystemspodcast.com/your-bank-balance-isnt-in-the-bank/
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Presenting Sponsors: Mercury, Meter, & Granola
Complex Systems is presented by Mercury—radically better banking for founders. Mercury offers the best wire experience anywhere: fast, reliable, and free for domestic U.S. wires, so you can stay focused on growing your business. Apply online in minutes at mercury.com.
Networking infrastructure has a way of accumulating technical debt faster than almost anything else in IT. Meter handles the full stack (wired, wireless, and cellular) as a single integrated solution: designed, deployed, and managed end-to-end so there's only one vendor to call when something goes wrong. Visit meter.com/complexsystems to book a demo. 
If meetings consistently leave you with hazy action items and lost context, Granola handles the transcription so you can actually participate and gives you searchable notes afterward. Try it free at granola.ai/complexsystems with code COMPLEXSYSTEMS
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Links:
The alchemy of deposits: https://www.bitsaboutmoney.com/archive/the-alchemy-of-deposits/ 
Deposit Insurance: https://www.bitsaboutmoney.com/archive/deposit-insurance/ 
Gift Cards: https://www.bitsaboutmoney.com/archive/gift-card-accountability-sink/ 
Debanking (and Debunking?) https://www.bitsaboutmoney.com/archive/debanking-and-debunking/ 
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Timestamps:
(00:00) Intro
(00:20) Why revisit this essay now
(02:03) Deposits are money
(06:53) Heavily engineered structured products pretending to be simple
(09:11) Credit card charge-offs as an underappreciated welfare program
(10:16) Deposits as pink slime
(13:08) Silicon Valley Bank and information sensitivity in the real world
(19:06) Many things are quasi-deposits
(20:00) Sponsors: Mercury | Meter
(23:13) Many things are quasi-deposits (cont’d)
(25:10) Voyager bankruptcy
(32:29) How the FDIC resolves bank failures over weekends
(34:49) Making the magic happen
(35:13) The GENIUS Act and the stablecoin interest debate
(40:31) Sponsor: Granola
(47:45) Wrap

In this episode of Complex Systems, Patrick McKenzie riffs on why public sector payroll modernization is even more likely to fail than the typical public software procurement project. He then goes into a wider discussion about payroll providers and their role as software, payment rails, and a sink for an enduring controversy in political economy. We want robust state capacity and hate income taxes. He breaks down the history of tax withholding as a state-deputized collection mechanism and explains how providers like ADP manage a lucrative "conveyor belt" of money to earn interest on the "float". Finally, he discusses how fintech innovations like Earned Wage Access (EWA) are providing a pro-social, daily-pay alternative to predatory payday loans.
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Full transcript available here: https://www.complexsystemspodcast.com/public-payroll/
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Presenting Sponsors: Mercury, Meter, & Granola

Complex Systems is presented by Mercury—radically better banking for founders. Mercury offers the best wire experience anywhere: fast, reliable, and free for domestic U.S. wires, so you can stay focused on growing your business. Apply online in minutes at mercury.com.
Networking infrastructure has a way of accumulating technical debt faster than almost anything else in IT. Meter handles the full stack (wired, wireless, and cellular) as a single integrated solution: designed, deployed, and managed end-to-end so there's only one vendor to call when something goes wrong. Visit meter.com/complexsystems to book a demo. 

If meetings consistently leave you with hazy action items and lost context, Granola handles the transcription so you can actually participate and gives you searchable notes afterward. Try it free at granola.ai/complexsystems with code COMPLEXSYSTEMS

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Links:
Mikey Dickerson episode: https://www.complexsystemspodcast.com/episodes/fixing-government-technology-with-mikey-dickerson/ 
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Timestamps:
(00:00) Intro
(01:10) Why government payroll projects keep failing
(02:08) The root cause: rules nobody can write down
(05:22) Fraud in plain sight: pension spiking
(10:18) The Information theory problem
(11:57) Essay: “Payroll Providers, Power, Respect”
(13:54) Why does payroll exist, anyway?
(16:13) Enter tax withholding
(18:20) An aside about tax preparation software 
(20:05) Sponsors: Mercury | Meter
(22:54) An aside about tax preparation software (cont’d)
(25:00) Withholding taxes were an operational disaster in early implementations
(27:08) So what happens in payroll, anyway?
(29:50) “Where is the risk transfer?”
(33:43) What about those other payments?
(39:01) Where is the frontier in payroll?
(39:25) Sponsor: Granola
(41:15) Where is the frontier in payroll? (cont’d)
(45:59) Rideshare apps vs. payday loans: Byrne Hobart's insight
(46:05) FinTech's net impact
(47:12) Wrap