Ok, nobody is actually a strict, or even particularly careful bayesean reasoner. Still, what probability do you reserve to “my model doesn’t apply, everything I know is wrong”? If you SEE a coin flip come up heads (and examine the coin and perform whatever tests you like), what’s your posterior probability that the coin actually exists and it wasn’t a false memory or trick in some way?
[Question] What epsilon do you subtract from “certainty” in your own probability estimates?
Ok, nobody is actually a strict, or even particularly careful bayesean reasoner. Still, what probability do you reserve to “my model doesn’t apply, everything I know is wrong”? If you SEE a coin flip come up heads (and examine the coin and perform whatever tests you like), what’s your posterior probability that the coin actually exists and it wasn’t a false memory or trick in some way?