Vinay Gupta thinks "nobody believes PoW is here to stay". Other commenters think "PoS might be impossible & no prominent cryptographer has some out in support o

Vinay Gupta thinks "nobody believes PoW is here to stay". Other commenters think "PoS might be impossible & no prominent cryptographer has some out in support of it". It's worth reminding people of the null hypothesis: Perhaps blockchains don't work.