The About page of the “Ask a Mathematician / Ask a Physicist” site has a great FAQ answer that reads like a joke:

The About page of the “Ask a Mathematician / Ask a Physicist” site has a great FAQ answer that reads like a joke:

Q: how long on average does it take to answer an email?

Mathematician: Some questions we have been asked will never be answered. Hence, if the universe lasts forever, the average time to answer questions will inevitably be infinity.

Physicist: Usually a couple days.

http://www.askamathematician.com/about/

http://www.askamathematician.com/about/