Chao:

I was going to make a joke about coastlines being fractal, but then I overthought it and it stopped being funny to me!

Me:

The main problem with maths puns is that only a fraction of the audience will get them.

Chao:

hehe!
that's why any comedian would be irrational to make one!

Me:

Indeed~
It'd be real stupid

Chao:

wow, you're making some complex jokes here!

Me:

So their funny part wasn't just imaginary to me?
I'm going to get pun-ished or these aren't I?