HYPOCAMPPOTTYMUS!

Reciting Pi to 40 places, in an occasional attempt to keep the old hypocampus from shrinking, has always been one of my favourite brain exercises. But whilst on most days the old grey cells will proudly rattle of the sequence - and throw in a rapid 12 times table for desert - on others, there is a black void past the first 4 places. (3.14 15....er...?..thingy...er...?...darn it!).

So I can't believe people actually do this - for FUN!!!