When a leader states a position, the room evaluates it. When a leader asks a genuine question, people start building their own reasoning, and the alignment that comes out of that still holds after everyone leaves the room.
The most useful definition of stress I've encountered is also the simplest: stress is the internal state of wanting two incompatible things at the same time.
We evaluate our past decisions under conditions that would be thrown out of any fair court. The defendant is your past self. The judge is your current self, armed with all the information the defendant never had. It's a rigged trial, and we run it on ourselves constantly.
There's a difference between working on something and being in something, and I think the difference is time. It's not necessarily clock time, it's accumulated attention.