The Sleeping Beauty Problem
Woken with no memory of having been woken before, how confident should you be that the coin came up heads?
1997 (posed), 2000 (named and popularised)24 min read
American analytic philosophy
Adam Elga
1974
Philosopher at Princeton working on formal epistemology, self-locating belief and disagreement. His three-page 2000 paper in Analysis gave the Sleeping Beauty problem its name and its thirder answer, and started a debate that has run for more than two decades without resolution.