PI can be a good filler but you always have to look up so much of it.

Back in the dark ages of the early 70s I decided that it would be fun to see how much of PI I could memorize. I got to this:
3.14169265358979323846264338327950288
I've had those digits stuck in my head ever since. I think quoting Star Trek and memorizing PI were the great nerd identifiers of that era. What a waste of memory space! huh

Bob