EH!! Greek! Translation, please!

(I'm joking Tim ... : I know that you are trying to say that you find it hard to do it. But your math is beyond my hability of truly understanding the demonstration ... I'll only believe in the spirit in it )

It's a joke on the math from my statistics and computer science classes.

P = probability (50% = 0.50)

n = a variable number (in this case, number of parts needed to complete a thing)

P^(n^n) = probability to the nth power of the nth power.

Example:

0.5 ^ 3 ^ 3 = 0.5^9

Something that follows an "n to the nth" (exponential) complexity model is considered to grow hard fast.

A manageable problem grows linearly--ie. adding three more parts is 3 times harder, vs. exponentially, which would make adding 3 more parts nine times harder.