3 types?
The name of the blog comes from an old one-liner that I find both funny and somehow true:
There are three types of people in the world - those who know how to count, and those who don’t.
It sounds to me like something from Stephen Wright, but I can’t find any attribution to him.
I’ve also found this is one of those jokes that divide people into two groups. Everybody “gets it”, in the sense that they realise it’s a joke - but only some of us find it funny. I think you need to have a healthy appreciation of the absurd to think it’s funny (as opposed to just nonsense) - and as a fan of such masters of the absurd as the Marx Brothers, the Goons, Monty Python, and Douglas Adams, I find it hilarious.
Your mileage may vary.