Toilets, marketing and the enforced humility of writing down your plan

Inspired by this excellent post from Tom Stafford."Just imagining that you might be wrong is enough to create demonstrable benefits to problem solving and estimation, which has been variously called “the wisdom of crowds on single player mode” and “dialectical bootstrapping”. I like to think that the imaginary crowd has a similar salutary effect on more complex thoughts. The audience does more than just make me imagine I might be wrong. It invites me to consider, from the diverse perspective of the audience members, the multiple dimensions along which I might be wrong."