Yeah, can't disagree that the piece has a healthy dose of mean-spirited ad-hominems. Though I don't think it's "age-ism" to make fun of a 50-something year old established billionaire talking like a 20-something who just discovered Joseph Campbell and is trying to convince his stoned college friends to drop out and join his startup.

But he's certainly not saying "disregard what he's saying, it's a midlife crisis", he gives countless other reasons why Andreeson should be disregarded... not least because he's already profited enormously off of the techno-optimism of the past and doesn't give any reasons why trusting him with future techno-optimism will turn out any different.

Thanks for calling it out. Didn't think of it that way. Strike that one from the list.