Fred Callaway
@fredcallaway.bsky.social
I study how people solve big problems with small brains. Starting at Dartmouth in 2026—I'm recruiting!
https://fredcallaway.com
https://fredcallaway.com
Aha, clever. So I guess the behavioral signature would be an increased stopping probability specifically after extreme observations (relative to mean of past observations)
January 25, 2026 at 2:41 PM
Aha, clever. So I guess the behavioral signature would be an increased stopping probability specifically after extreme observations (relative to mean of past observations)
Very interesting result! Apologies if I missed this, but do you have a sense what the "raw" behavioral signature of ΔES is? In particular, how can we distinguish it from collapsing bound / urgency? @mmiedl.bsky.social
January 21, 2026 at 2:17 PM
Very interesting result! Apologies if I missed this, but do you have a sense what the "raw" behavioral signature of ΔES is? In particular, how can we distinguish it from collapsing bound / urgency? @mmiedl.bsky.social
This feels to me like saying “how gas might viably work without the need for pressure and temperature.” Representations are just a way to describe neural activity, which is itself just a way to describe a bunch of particles moving around. The question is whether it’s a *useful* description.
January 6, 2026 at 2:17 PM
This feels to me like saying “how gas might viably work without the need for pressure and temperature.” Representations are just a way to describe neural activity, which is itself just a way to describe a bunch of particles moving around. The question is whether it’s a *useful* description.
FWIW I started unfollowing people who mostly post political content a few months ago and my feed is now mostly cool science. Complete control over what you see is a big benefit of bsky!
December 9, 2025 at 3:14 PM
FWIW I started unfollowing people who mostly post political content a few months ago and my feed is now mostly cool science. Complete control over what you see is a big benefit of bsky!
That makes sense, thanks!
October 16, 2025 at 12:22 PM
That makes sense, thanks!
Against better judgment, I will ask a sincere question. Why is this best understood as trivializing rather than normalizing? I’m assuming it’s not literally the POS but instead using the term to describe common patterns of thought and behavior; is that right?
October 16, 2025 at 1:28 AM
Against better judgment, I will ask a sincere question. Why is this best understood as trivializing rather than normalizing? I’m assuming it’s not literally the POS but instead using the term to describe common patterns of thought and behavior; is that right?
If you include emotion recognition in "physiognomy", sure—but that's an unusual use of the term. If (1) people with PTSD have a different distribution of emotional responses and (2) emotional state can be inferred from facial expression, then it follows that one can infer PTSD from images.
July 14, 2025 at 10:14 AM
If you include emotion recognition in "physiognomy", sure—but that's an unusual use of the term. If (1) people with PTSD have a different distribution of emotional responses and (2) emotional state can be inferred from facial expression, then it follows that one can infer PTSD from images.
Completely agree. I just think it’s in all of our interests if we are as precise as possible when criticizing irresponsible use of AI. The cultural bias point is a strong one. I’m less sure about the blanket statement that a statistical model can’t do what’s claimed here *in principle*.
July 13, 2025 at 9:54 PM
Completely agree. I just think it’s in all of our interests if we are as precise as possible when criticizing irresponsible use of AI. The cultural bias point is a strong one. I’m less sure about the blanket statement that a statistical model can’t do what’s claimed here *in principle*.