This is the geekiest joke ever.

[flewellyn]

How many X does it take to Y?

Let P = set of things incongruous to Y.
Let Q = set of things humorously appropriate to X.

N. One to do Y, N - 1 to do Z, where Z ∈ {P ∩ Q}.

There, that's all lightbulb jokes anywhere, generalized.

Comments

[sheistheweather]

Ahahahaha.

[flewellyn.livejournal.com]

I thought you might.