The 50-50-90 Rule

The 50-50-90 rule:

Anytime you have a 50-50 chance of getting something right, there's a 90% probability you'll get it wrong.

  • Andy Rooney (allegedly)

Pi Mnemonic

Here's one of my favorite piems:

How I need a drink,
3 . 1 -4-- 1 --5--
alcoholic of course,
----9---- 2- --6---
after the heavy lectures
--5-- -3- --5-- ---8----
involving quantum mechanics!
----9---- ---7--- ----9----

Happy Pi Day!