I can't tell you why there's a delay, but stick your head out of the window and you'll know why.
These are my friends, my family. It would be hell on earth to spend the rest of my life leading them into situations where some of them are going to get killed... but it would be worse watching someone well-meaning but incompetent or untrained double those deaths.
To consult the statistician after an experiment is finished is often merely to ask him to conduct a post mortem examination. He can perhaps say what the experiment died of.

