I'm co-founder and CTO at Crashpadder.com, now product at Airbnb. On @serenestudios. I also conduct the Beethoven Ensemble on @bethoven_ensem. Full profile here » At a recent Seedcamp day I was talking with a few teams about how to do a cohort analysis quickly and easily. We all know the value of actionable metrics above vanity metrics (thanks in part to Eric Ries’s new book), but getting them out