It is a bit similar. The issue with Pascal's Wager is that you do not know a priori if praying for a good afterlife makes the good afterlife more or less likely

It is a bit similar. The issue with Pascal's Wager is that you do not know a priori if praying for a good afterlife makes the good afterlife more or less likely. For example maybe you pray to Jesus and then Allah disapproves of your idolatry. You just can't know, because it's impossible to reason about supernatural stuff. With cryonics, though, you can be pretty sure that you are not going to be more dead. There is a small probability you will be revived in a dystopian world and regret it. You can never know for sure, but you can at least reason about it and think about the probabilities given what you know about human nature and history and so on.