Yep. The tricky thing is that "help a colleague on some little problem" can end up being an expensive context switch, but can also be pretty valuable. A degre

Yep. The tricky thing is that "help a colleague on some little problem" can end up being an expensive context switch, but can also be pretty valuable. A degree of asynchrony, and perhaps some kind of "office hours" type mechanism to handle questions in batch mode seem like good solutions. But that goes against processes which treat "resolving blockers" as top priority.