To this day, I fail to understand why some people cannot enjoy constructive mathematics or practical engineering without shitting on traditional maths or CS. T

To this day, I fail to understand why some people cannot enjoy constructive mathematics or practical engineering without shitting on traditional maths or CS. The "runtime on real data" thing is a trope by now, an algorithm that is exponential is in general not going to miraculously be very fast on "real-world" data, and even if it is, chances are, it won't be anymore once you change your data (with some few exceptions like the Simplex algorithm).