I have a degree in mathematics and (PhD) friends who are still in the system. Event they admit that pure mathematics is largely an illusion. But it pays, if you

I have a degree in mathematics and (PhD) friends who are still in the system. Event they admit that pure mathematics is largely an illusion. But it pays, if you're lucky. Mathematics in general, and logic, are extraordinarily useful tools when applied to real systems. I use them frequently when developing software. However, like every tool, they can metastatize beyond their use. In my opinion that describes the vast bulk of "pure" mathematics and "pure" logic (and "pure" programming).