[tjwii]

> Calculus is useless, until it is not at which moment it turns to incredible help.

Yes! And that's why you need to learn to be fluent in: Spanish, Chinese, Russian, French, and some other languages. You never know when you need them!

[watwut]

People seem to think that financial software, artificial i telligence, map software, math libraries they use, graphic software etc all emerged due to magic. They did not and all required calculus.