[zitterbewegung]

There are only two hard things in Computer Science: cache invalidation and naming things.

-- Phil Karlton

[roomey]

You forgot the "and off by one errors"

[javier123454321]

I would add also hearing this quip every time either of those things come up un conversation.

[johnnyo]

“There are only two hard things in computer science. Cache invalidation, naming things, and off-by-one errors.”

[newswasboring]

My favorite form is when someone shouts "concurrency" in the middle of the sentence.

[begueradj]

"There are 2 hard problems in computer science: cache invalidation, naming things, and off-by-1 errors"

[__MatrixMan__]

I've always wondered if he meant coming up with good names or if he meant ensuring that names, however they're chosen, reliably resolve to the named thing.

[tracker1]

You forgot "Off by one errors."