[doodlesdev]

Concurrency.""There are three hard things in computer science: cache invalidation, naming things, off-by-one errors, and

Original quote:

   There are only two hard things in computer science: cache invalidation and naming things. — Phil Karlton 

The one that most people know:

   There are two hard things in computer science: cache invalidation, naming things, and off-by-one errors. - Jeff Atwood

[selcuka]

- Knock knock

- Race condition

- Who's there?