Oct 15, 2026 · 10 min
Pandemic excess offers a warning for AI investors
The AI Hangover Is Coming. The Pandemic Already Showed Us How It Ends. – Ep 305
The episode frames today’s AI investment boom through the pandemic’s familiar cycle of enthusiasm, rapid adoption, excess capacity, and disappointment.
- 1AI stocks may follow a cycle in which enthusiasm and easy money outrun durable demand.
- 2The pandemic provides a recent analogy for how rapid adoption can create excess capacity and investor disappointment.
- 3Katsenelson’s essay treats the coming AI hangover as an investment risk, not merely a technology story.
Don't miss
Katsenelson turns a pandemic comparison from a client letter into the episode’s central warning about an AI market hangover.
The brief
Vitaliy Katsenelson introduces an essay on AI stocks, adapted from a client letter after its pandemic comparison grew into a standalone piece.
The central argument is historical rather than technological: enthusiasm, easy money, and rapid adoption can produce excess capacity before expectations catch up with reality.
The pandemic serves as the episode’s warning sign, showing how a powerful adoption story can still end in disappointment when demand normalizes.
The essay’s larger concern is an AI market hangover, with investors forced to distinguish durable value from a boom built on momentum and extrapolation.
What was said on this episode
22 statements · 4 positive · 17 negative · 1 mixed
AI stocks will experience a future hangover.
“The AI hangover is coming.”
Listen at 0:40
The pandemic previewed how the AI stock cycle will end.
“The pandemic already showed us how it ends.”
Listen at 0:43
Peloton’s stock fell from $160 to single digits.
“The stock fell from $160 to single digits.”
Listen at 3:11
AI will experience a pandemic-style overcapacity hangover.
“The same will happen in AI.”
Listen at 4:22
Data-center inputs are substantially overpriced.
“Everything that goes into data centers, from cement to the labor that builds them, to the electricity that runs them, to the chips that provide their intelligence, is overpriced by a large factor.”
Listen at 4:31
Gas turbine prices are on track to triple from 2019 levels.
“Gas turbines are on track to triple in price from 2019 levels.”
Listen at 4:43
Data-center electricians earn about twice other electricians’ pay.
“An electrician wiring a data center makes about double what electricians make everywhere else.”
Listen at 4:47
Nvidia sells chips at a 75% gross margin.
“Nvidia sells its chips at a 75% gross margin, as if it were a software company.”
Listen at 4:53
The probability of overbuilding data centers is high.
“The probability is not zero, it is actually high.”
Listen at 6:33
Weak AI demand could cause massive write-downs and debt problems.
“If demand doesn't match the straight lines, we'll see Peloton times a thousand write-downs, and then the debt will come to collect.”
Listen at 6:37
Correctly identifying AI technology does not protect investors.
“Being right about the technology does not save the investors.”
Listen at 6:53
Telecom experienced a decade-long downturn after the dot-com era.
“telecom went through a decade-long nuclear winter.”
Listen at 7:03
Today’s AI frontrunners may suffer Yahoo’s eventual decline.
“Today's frontrunners may meet Yahoo's fate.”
Listen at 7:39
AI has the capability to change the world.
“AI can change the world.”
Listen at 7:42
Many current AI investments may ultimately perform terribly.
“many of today's AI investments can still turn out to be terrible.”
Listen at 7:45
The stock market does not price in poor AI investment outcomes.
“The stock market isn't pricing in that possibility.”
Listen at 7:51
The S&P 500 is about 1% below its high.
“The S&P 500 sits within about 1% of its high”
Listen at 8:12
The median S&P 500 stock is 17% below its 52-week high.
“the median stock in the index is 17% below its 52-week high”
Listen at 8:19
About 40% of index stocks are down more than 20%.
“about 2 out of every 5 are down more than 20%, which is bear market territory.”
Listen at 8:25
The median technology stock is 23% below its high.
“Even inside the technology sector, the median stock is down 23% from its high.”
Listen at 8:30
Valuations can suddenly become consequential after being ignored.
“Valuations don't matter until they do.”
Listen at 8:54
Katsenelson will not pursue short-term gains through speculative AI investing.
“I am not joining the peloton of insanity just to win a battle, a quarter, and lose the war.”
Listen at 9:09
Statements are attributed to the speaker as said on the episode and reflect their view at the time, not PodLume's. They are not advice.
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