Patrick McKenzie on Navigating Complex Systems

Writer and former Stripe adviser Patrick McKenzie talks with Tyler Cowen about the hidden mechanics of banking, payments, and fraud, why he spent twenty years in Japan, and what running a volunteer vaccine-finding operation taught him about talent — a tour of how large, patchwork institutions actually work, run by a man who has spent his career explaining them.

Key ideas

1. Old security theatre survives because no one owns the fix. The credit card signature is a vestige of solemnisation, not authentication; spurious decline rates persist for decades because the payment system is a stitched-together patchwork of legacy systems with no unitary authority accountable for improving it — the kind of decade-long problem McKenzie says would yield to ‘the right people in the right places’ actually working on it.
2. People overpredict evil and underpredict competence — except where fraud goes undetected. McKenzie was surprised by the scale of maple-syrup supply-chain fraud but by how little insider trading gets caught; he suspects the legitimate economy hides far more fraud than crypto does, only crypto’s frauds are visible.
3. A rigorously reasoned decision can be right for entirely the wrong reasons. McKenzie built a spreadsheet ranking countries by opportunity before choosing to learn Japanese and move to Japan at twenty — a decision whose stated logic proved baseless but which shaped the rest of his life regardless, a caution against trusting even careful-seeming reasoning behind other people’s big choices.
4. Nonspecialist talent is more capable, faster, than institutions assume. Running VaccinateCA with largely non-credentialed volunteers confirmed his prior belief that spiky, internet-sourced talent can match or beat professionals who have spent entire careers on a narrow problem — while conceding that credentialed institutions still matter for durable legitimacy and coalition-building.
5. A single blog post can unlock tens of millions of dollars sitting on the table. McKenzie’s 2012 salary-negotiation post produced a documented eight-figure aggregate impact on readers’ pay, evidence for him that society is ‘hideously under-optimised’ wherever a societal script — here, the taboo against seeming greedy — suppresses obviously profitable behaviour.

Content

Money, security, and the persistence of security theatre

Cowen opens on small mysteries of the payment system. The credit-card signature, McKenzie explains, was never for authentication — clerks cannot forensically compare signatures — but for solemnisation: a legally binding promise to the issuing bank, now redundant since everyone already understands that handing over a card is itself the binding act. Checks carried a worse flaw: printing a bank-account-draining secret in machine-readable type on every document handed to a stranger, a design tolerable in its era but ‘disastrously bad’ by any 2023 standard, defended for decades by a shadow anti-fraud infrastructure built to absorb the losses rather than fix the hole. On false credit-card declines — half-joked as caused by ‘gremlins’ — McKenzie, a former Stripe adviser, says the true rate is a trade secret but far higher than any rational person would tolerate; it persists because the ecosystem is a patchwork of decades-old systems with no single executive accountable for a target, even though he has watched targeted effort move the number quickly once someone owns it. He draws a parallel to SpaceX: a problem assumed to be bounded by physics turned out to be bounded by will, and he has updated accordingly on which ‘intractable’ problems are actually tractable.

Fraud, evil, and where crime hides

Asked why anyone works in debt collection — low pay, worse conditions, near-100%-plus annual turnover — McKenzie’s explanation runs through ‘evil’ as a real, load-bearing feature of accurate models of the world: some people are drawn to inflicting suffering, and debt collection (like some policing) offers that outlet, alongside the more mundane fact that a call-centre job may be the only office work available in a depressed rural labour market. The maple-syrup heists genuinely surprised him: he had assumed ‘real companies’ and light agricultural regulation implied near-zero supply-chain fraud, but smaller boutique buyers skip the checks large producers run, enabling million-dollar thefts — a pattern he compares to stolen Tide detergent functioning as underground currency because corner shops can verify its seal and want the volume. Asked where fraud runs lower than expected, he points to insider trading: SEC press releases repeatedly describe offenders googling ‘how to get away with insider trading’ on work computers, leaving him unsure whether the crime is genuinely rare or merely that only the least competent perpetrators get caught. His working view is that crypto simply makes its frauds visible while the legitimate economy hides a comparable or greater rate behind institutional respectability.

Twitter, money transfers, and the costs regulation imposes

On Elon Musk’s ambition to turn X into a universal payments app, McKenzie — declining to speak for his former employer Stripe — puts the odds ‘far below 1 percent’: users get an entirely different basket of goods from Twitter, and grafting payments onto an unrelated use case does not itself create adoption, however much the Asian super-app model might tempt a product manager. He is unreserved in calling Twitter one of the internet’s most important products regardless — an under-appreciated ‘message bus’ coordinating the US federal government, the media, and every counterparty around them. On Western Union’s high fees to send money to Mexico, he directs blame at the industry’s own annual reports: half of all revenue funds physical points of presence in both sending and receiving countries, a cost structure crypto critics rarely bother to read before asking why fees are high. The larger cost, he argues, is regulatory: anti-money-laundering and know-your-customer requirements impose real friction on small transfers to prevent structuring, a rationale he does not dispute even while agreeing with crypto advocates that the compliance drag is enormous — his disagreement with them is tactical, that the fix is changing the law, not building technology to evade it.

Banks, parking lots, and why bank robbery barely pays

Empty bank parking lots are pure queuing theory: routine visits need only minutes of dwell time, but new account opening needs thirty to sixty-plus minutes and drives outsized institutional value, so branches over-provision parking year-round to avoid losing the rare high-value opening window. McKenzie takes this as confirmation that a checking account is ‘a favour one does for the bank’ rather than a place to hold meaningful money. On bank robbery, FBI data puts the median haul at about $8,000 — a poor return given the near-certainty of eventual capture — which is why banks train staff to comply fully with robbers rather than resist: an employee’s liability-adjusted value vastly exceeds any loss from an $8,000 theft, and the crime is disproportionately committed by people in acute distress or addiction rather than rational profit-seekers, unlike the far more lucrative and lower-risk alternative of credit-card fraud.

Twenty years in Japan, and the salaryman social ladder

McKenzie moved to Japan at twenty on the strength of a spreadsheet ranking countries by population, business-English capacity, and software-industry size — reasoning he now regards as rigorous but built on a false premise (that the dot-com bust would end US engineering hiring), and which nonetheless became one of the most important decisions of his life: two decades in Japan, a wife, two children, and a durable case study in how much weight even sophisticated people place on thin analysis. He needed roughly three years of full immersion before becoming professionally capable in written Japanese, a level he still measures against his own fluency in English rather than against typical learners. Entrepreneurship, he found, was undervalued in the Japanese marriage market to the point of comic anecdote — a preschooler pronouncing him ‘unemployed’ on hearing he was a founder — while salaryman culture, in a system where ‘the company owns you body and soul’, substitutes social status directly for the money a Western worker would earn and then spend on status goods: he recounts two office colleagues literally reordering a wall seniority chart by discussing, in front of him, whose recent performance merited the higher position. He names his six years as a burnt-out salaryman as one of his life’s clearer regrets — he thinks the useful signal from the experience could have been extracted in weeks, not years, had social pressure not held him in place.

Crypto scepticism: Tether, Bitcoin, and epistemic humility

McKenzie has called Tether a fraud for years and treats the CFTC’s finding — that it was under-backed on more than 75 of an 18-month examination’s days — as vindication, expecting eventual collapse via a government freeze on its custodied reserves triggering a classic bank run, much as Bernie Madoff’s fraud surfaced only once redemption requests during the 2008 crisis proved he lacked the cash. On Bitcoin near $33,000, he holds that it remains overpriced relative to demonstrated utility — he said the same at $17 — while conceding real epistemic humility after a decade of the market voting against him; he cannot fully explain why Bitcoin, which he regards as clearly not crypto’s best product, is nonetheless its most valuable one by a wide margin. Despite the scepticism, he professes genuine ‘ebullience’ for the internet itself, ranking it above medicine and penicillin in importance to human welfare, and says the only scenario in which he would regret its invention is one in which it causally contributes to human extinction.

Talent, negotiation, and returning home

Running VaccinateCA during COVID confirmed a prior he already held: that non-credentialed, internet-sourced talent can match or exceed professionals — a county health department fully trained for exactly this crisis — within weeks, while he still values credentialed institutions for coalition-building and durable legitimacy. On why people under-negotiate, he points to a near-universal cultural script against appearing greedy, so deep it may be close to biologically wired; his 2012 salary-negotiation blog post, read by hundreds of thousands annually, has produced a self-reported aggregate impact he stopped tracking after roughly $10 million a year — evidence, he says, both that he under-invested in writing more like it and that society leaves vast, cheaply captured value on the table. Returning to Chicago after twenty years, he reports sharper reverse culture shock than his Japan-raised children or wife, citing ballooning US restaurant portion sizes and everyday infrastructural carelessness — coining ‘the will to have nice things’ for what Japan does and much of America does not. He closes by naming his next intended subject of study: the engineering reality of deep geothermal heat and electricity extraction, prompted by pro bono work for a nonprofit trying to popularise the technology.

See also

• Patrick McKenzie — speaker
• Tyler Cowen — host