Anything less than rapturous enthusiasm will get you branded as a pariah and spike your tenure at that company.

I've never been able to convince anyone to not blow their own foot off. And when things do go south, as they always do, the truth sayer becomes the scape goat.

Advice I got from Luke Hohmann in the 90s: You have to let people fail on their own. Meanwhile, prepare plan B, if you want to pick up the pieces afterwards.

My advice: Take notes, play amateur ethnographer, anthropologist, socialist. Learn how these fads, cults, groupthinks play out.