Uncertainty

Noted physicists Schrödinger and Heisenberg are driving around in a car, and Heisenberg says,”I think we just ran over a cat.”

“Is it dead?” asks Schrödinger.

“I can’t be certain,” says Heisenberg.

Had I been alive a hundred years ago Werner Heisenberg would have been my neighbour here in the Schwabing neighbourhood of Munich. 

I am uncertain as to why I feel obliged to mention this fact.