[LAMike]

Name the most prominent cryptographer that is in favor of PoS, in my research, very few who have studied this science for decades think it's possible.

What's it going to take to make it work?

[Ar-Curunir]

I know no cryptographers that have studied PoW for "decades" in the context of cryptocurrencies. Even Bitcoin itself is less than decade old.

[LAMike]

Adam Back came up with the idea of PoW with BitGold I beleive