Comment by Swannie

> Which is a reference to the "two hard problems" jokes, the most used is "There are two hard problems in Computer Science: Cache invalidation, naming things, and off-by-one errors"

It's just as funny today as when I first heard it in 2002/2003... to which my professor at the time would add:

"But really, naming things is colouring. And cache invalidation is colouring. So really there's only one problem in computer science, colouring and counting... which doesn't sound so hard after all".