Perhaps the parent wanted to link to Wikipedia (not the Bitcoin Wiki) where the criticism is more concise: https://en.wikipedia.org/wiki/Proof-of-stake https://

Perhaps the parent wanted to link to Wikipedia (not the Bitcoin Wiki) where the criticism is more concise: https://en.wikipedia.org/wiki/Proof-of-stake https://en.wikipedia.org/wiki/Proof-of-stake "One problem is usually called the "nothing at stake" problem, where (in the case of a consensus failure) block-generators have nothing to lose by voting for multiple blockchain-histories, which prevents the consensus from ever resolving"