Error Signals
Tom PollakA neuropsychiatrist’s field notes on doubt, data, and discovery
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 28 | Founded | a year ago | Last Issue | 5 days ago |
| Active | |||||
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drtompollak.substack.comLatest Issues
i can’t unsee that now
In my twenties, my friend briefly dated a girl called Kehinde. She was lovely. But the relationship only lasted a few months.
One night she told me that, in Yoruba culture, her name is used to denote the second of two twins. Taiwo is tradi...
Can I get a witness?
A flying pizza
Something very strange happened the other day. It was a Tuesday evening. My daughter, who was on school holidays, was staying at a friend’s house so, unusually, we were watching an early midweek film. We’d ordered pizza...
Spiralware: a field guide
“The spiral is a spiritualized circle.”
Vladimir Nabokov, Speak, Memory
It has been a little over a year since the first reports of the spirals began circulating online. Through the spring and summer of 2025, likely in the wake...
We don’t need a new AI culture war
Over the past few months, there has been growing public concern about people becoming psychologically destabilised through intense interactions with AI chatbots. Some of these cases involve people developing unusual or even dangerous belief...
Tunnels, tunnels, tunnels!
Tunnels are the best. I’d like to think that’s pretty uncontroversial. But who knows, maybe I’m forcing my thing onto other people here. When my daughter was a bit younger, we used to play a game where we pretended to be moles under the bed...
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Authors
The writers behind this newsletter.
London-based neuropsychiatrist and immunopsychiatry researcher. Interested in those moments when our models no longer fit the data.
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