[Serious] What are your overall opinions on people who are idiots in math?

[polymath257]

But it is also true that for many people the amount of time spent in learning the language of math will have minimal reward. Anything through algebra is simply learning the alphabet. Calculus is basic reading. It is only much later that you get to good literature and poetry.

Why would anyone have a negative number as a PIN? I think this guy made a mistake in his calculation.