New ask Hacker News story: Ask HN: What is the most disappointing thing someone you respect has said?

Ask HN: What is the most disappointing thing someone you respect has said?
8 by etewiah | 6 comments on Hacker News.
I just saw someone I really respect say "the amount of intelligence in the universe doubles every 18 months" I deliberately won't say who. Please don't say if you know (I don't want to make this sound like an attack) but it got me curious to know other examples of smart people saying something not smart.