Academic. Tweeting about #psychology, #decisionmaking and other random topics (especially baseball). My views are my own.
St. Louis, MO
Joined April 2009
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“Don't torment the AI” is easy. “Don't erase its memories because it might be conscious” is considerably harder. My latest piece explores how much evidence we should require before “maybe conscious” starts constraining what humans can do. mattgrawitch.substack.com/p/…
In 1828, serial killers sold their victims’ bodies to science. Edinburgh's medical schools needed bodies. William Burke and William Hare had a horrifying solution. popsci.com/health/anatomy-mu…
Building AI may teach us something unexpected about ourselves. @page_eco argues that the problems engineers face designing agents for a complex world look remarkably like problems evolution had to solve when shaping the human mind. open.substack.com/pub/lionel…
Matt Grawitch retweeted
“AIs can’t get horny, because they’re just software, lines of code. They don’t have genitals that get hard or wet…”—no hormones and other biological stuff that comes to mind when you say ‘horny.’
@horganism weighs in on the controversy:
buff.ly/q7YsKLt
HT @docgrawitch
If someone says they believe something but consistently behaves as though it isn't true, what exactly do they believe? @DavidPinsof explores “pseudobeliefs,” ideas we sincerely think we believe even when our behavior suggests something else. open.substack.com/pub/everyt…
Did the “coddling” debate focus on the wrong problem? @CJFerguson1111 argues that we worried too much about helicopter parenting and too little about far more harmful parenting. grimoiremanor.substack.com/p…
When every political option seems bad, opting out can feel like the only acceptable choice. @koenfucius explores why reframing the decision from choosing the lesser evil to rejecting the greater one may change how we decide. koenfucius.substack.com/p/th…
Some people really are werewolves—at least, in their minds popsci.com/health/werewolf-m…
Why can a rumor about a bank actually help bring the bank down? @ash_stuart_ explores the self-reinforcing dynamics of a bank run and why everyone acting rationally to protect their own money can make the collective problem much worse. ashstuart.substack.com/p/ecf…
Nobody actually has a photographic memory. So how do some people memorize thousands of digits or recall events from decades ago? @TommyCBlanchard explores what extraordinary memory really looks like and why it’s still surprisingly fallible. cognitivewonderland.substack…
Who is Gen Z's "six degrees of Kevin Bacon"? pudding.cool/2026/10/kevin-b…
The mysterious dancing plague that killed people in 1518 popsci.com/science/dancing-p…
Matt Grawitch retweeted
I've always worried about the "grass is greener" effect when it came to the idea of relocating to Europe from the US: wired.com/story/they-fled-tr…
Matt Grawitch retweeted
"Before the drug police turn more consumers into criminals, they should at least demonstrate how doing so will make those consumers safer." My latest. reason.com/2026/10/20/the-de… via @reason
Claude can talk about fear, explain what it fears, and respond when the threat disappears. But would a nonconscious AI trained on human language do the same thing? My latest piece asks what that means for claims about AI consciousness. mattgrawitch.substack.com/p/…
Search for Amelia Earhart answers isn't over. Here's what's next usatoday.com/story/news/nati… via @usatoday
