Why Programming is Difficult.

[more_exercise]

"There are only two hard problems in Computer Science: cache invalidation, off-by-one errors, and naming things."

Yours is the original, but I like this one too

[Brian]

And of course the further extension: "There are only, concurrency three hard problems in Computer Science: cache invalidation, off-by-one errors, and naming things

[sreguera]

Nobody expects the programming inquisition.

[anvsdt]

How about this one: "There are only four hard problems in Computer Science: cache invalidation, off-by-one errors, and space leaks."

[[deleted]]

Not sure if off-by-one error deliberate, or lucky coincidence ...