I'd argue that 100% of all humans use the decimal system, most of the time. Maybe 1 to 5% of all humans use another system some of the time. Anyway, there are

I'd argue that 100% of all humans use the decimal system, most of the time. Maybe 1 to 5% of all humans use another system some of the time. Anyway, there are 10 types of people, those who understand binary and those who don't.