Because they don't believe in higher powers.
They just work it out with a pencil!
She worked it out with a pencil.
When he was told to "go big or go home," he only had one option. (I've posted this joke here before, but I believe I've been the first, so if you recognize it as a repost it's because I wanted to tell it again!)
Well I'll be damned!
Willing suspension of disbelief
None. They don't believe in a higher power.
