Elephant in Cairo (Byte Magazine, 1989)

A longer version of the Prime Number joke involving a Mathematician, Scientist and Engineer.

All the great ideas were taken by some guys in the 80s.

"He can be reached on BIX as "pcolsen". "

Byte Information Exchange?

Yes.

Some distracted Googling led to the discovery that CIX, the UK equivalent, is still running private forums. After 42 years.