Completely agree. The fine article discusses the attack issues with most PoW. The problem is that even the threat of such attack makes success more likely. I do

Completely agree. The fine article discusses the attack issues with most PoW. The problem is that even the threat of such attack makes success more likely. I don't know that there aren't other issues, but it seems PoS at least has a less obvious failure mode (if you need short term control of $80B ~25% rather than $30M/day or <3% for bitcoin). That could frankly even be a profitable short play.