The man that sounded the Coronavirus alarm: Joscha Bach @Plinz | The Vance Crowe Podcast

About this episode

Joscha Bach, a cognitive scientist and AI researcher, joins Vance for a remarkable public reconciliation: weeks earlier, Vance had privately criticized Bach for over-warning about coronavirus, and now admits he was completely wrong. Bach explains his early-warning reasoning — tracking Wuhan's exponential spread, the world Health data on infection rates, and modeling herd-immunity mortality at "holocaust level" scale (1-6 million US deaths if unmitigated) — and describes writing a viral article, "Flattening the Curve Is a Deadly Lie," arguing that the popular flatten-the-curve framing understated the disease's infectiousness by an order of magnitude; four days later, Imperial College London's landmark report validated his numbers. The conversation ranges widely: Bach's personal theory of tribal epistemics (people believe what their in-group believes, not what's objectively true), the psychology of "nerds" who submit ideas for peer review versus "normies" who use communication to negotiate social alignment, exponential-growth intuition failures (the water-lily thought experiment), the U.S. mask-messaging debacle, historical parallels to the 1918 Spanish flu's damage to in-utero children, and a closing riff on how existential crisis periodically forces "postmodernist" institutions back toward competence. Vance repeatedly interrupts to flag his own realizations in real time — most strikingly his admission that a chart he'd trusted had no labeled axes, and that he was "completely beholden to propaganda" with no independent way to evaluate pandemic claims.

“I really developed an entire hypothesis about how people believe what they believe... what you know is what your tribe believes and what is acceptable among that group of people. And I fucking did it to you at the moment that it was happening because you're exactly right. I was a part of the tribe that was the people that were saying this overreaction to coronavirus is just that.”

“I am completely beholden to propaganda. I have literally no way of understanding this other than what other people tell me. And so I was reading your article with a sense of awe because it made me realize just how vulnerable I had been to this group think and didn't even know it.”

Key moments

• Vance opens with a public confession — he privately told Bach he was jeopardizing his reputation by over-warning about coronavirus, and is now "nothing short of ashamed" for being wrong.
• early ~10% (strong bubbles excerpt): Vance's tribal-epistemics framework — "what you know is what your tribe believes" — applied reflexively to his own prior dismissal of Bach's warnings.
• Bach's stark mortality framing — modeling 40-80% infection rates and 2-4% mortality yields a "holocaust level event" of 1-6 million US deaths if unmitigated, a claim Vance says he'd "never heard anybody say... this is that stark."
• Bach's theory distinguishing "nerds" (who communicate to submit ideas for peer review) from "normies" (who communicate to negotiate social alignment) — explaining why he was willing to risk his reputation on an unpopular position.
• The "flattening the curve is a deadly lie" argument — Bach explains the popular chart lacked labeled axes and understated by 10x+ how much the curve needed to be squashed, not just flattened, to avoid overwhelming ICU capacity.
• middle ~40% (strong bubbles excerpt): Vance's real-time epiphany that the influential chart he'd trusted had no numbers on its axes — "I am completely beholden to propaganda... I have literally no way of understanding this other than what other people tell me."
• Bach's water-lily exponential-growth thought experiment (a lake covered in 40 days, doubling daily — half-covered on day 39, not day 20) illustrating why exponential threats look deceptively harmless until very late.
• Bach's takedown of the U.S. surgeon general's mask messaging as internally contradictory and a failure of supply-chain planning, not science — "you don't get a sanding mask N95 from Home Depot."
• The Spanish flu parallel — Bach cites documented lasting IQ, earning-potential, and life-expectancy damage to children who were in utero during the 1918 pandemic, directly relevant to Vance's own pregnant wife.

Notable quotes

“If this goes to the entire population... something north of a million people with active symptoms... this will lead to a complete collapse of our medical system... it'll be remembered as a holocaust level event.”

“I am completely beholden to propaganda. I have literally no way of understanding this other than what other people tell me.”

“The dotted line is actually much, much further down... it's probably going to be a factor of more than 10. This thing was way more infectious than people gave it credit for.”

“Imagine a lake... water lilies doubling every day. After 40 days the lake is completely covered. After how many days is half the lake covered?... The 39th day.”