Ascribing a prior probability of zero for these claims is like saying we should ignore all previous evidence and start over from scratch.
It’s actually worse than that. Assigning a prior of 0 means that no amount of evidence can allow for an update to a non-zero posterior probability.
It’s actually worse than that. Assigning a prior of 0 means that no amount of evidence can allow for an update to a non-zero posterior probability.