Ex Post Facto no. 4 – Biff Tannens, Beaver Butts, & Psychological Safety

There are two types of retroactive knowledge. First, there are things that would have helped you do better if you could go back in time. I call those Biff Tannens.

Then there’s the second type, which after today’s Ex Post Facto, I’m going to start calling Beaver Butts. These are things that just make you realize how weird the world has been all along.

Her…