Just exactly how many types of people are there?

Well, here are some of the possibilities:
There are two types of people in the world,
those who divide everyone into two types and
those who don't.

There are three types of people in the world,
those who can count and
those who can't.

There are two types of people in the world,
those who finish what they start and so on . . .

There are 10 types of people in the world,
those who understand binary and
those who don't.

There are two types of people in the world,
those with good eyesight and
people like me.

There are 11 types of people in the world,
those who use Roman numerals and
those who don't.

There are 2 types of people in the world,
those who visit TheRussler.com and
the deprived!

There are 3 types of people in the world,
those who look at the glass as half full,
those who look at the glass as half empty, and
those who spill it in your lap.

There are x people in the world,
those who can tell a joke . . .
no, wait . . .