Something the Recurse Center also put a lot of work into is making it safe to express lack of understanding/knowledge. There's a huge difference between a meeti

Something the Recurse Center also put a lot of work into is making it safe to express lack of understanding/knowledge. There's a huge difference between a meeting where someone feels able to say "I'm totally lost, can we rewind" and one where they just quietly panic. That's somewhat in tension with being able to express dissent, in that being able to dissent constructively requires both social skill and an underlying environment of trust. It's easy to cultivate only one of those (eg most OS mailing lists choose dissent) but cultivating both is harder and I haven't seen it ever happen by accident - all the communities that come to mind are ones that direct a lot of attention and effort to community structure and expectations.