alt Hacker NewsThe Quanta article on the paper was considerably more breathless in describing a fine piece of work in mathematics. The author here points out that one of the things that makes Dijkstra's result iconic is that it could be used practically in a straightforward way. As an engineer, beautiful mathematics is useless if I can't convert it to running code.
Actually there's a whole bunch of mathematics which I find useful as an engineer because it tells me that the perfection I have vaguely imagined I could reach for is literally not possible and so I shouldn't expend any effort on that.
e.g Two body gravity I can just do the math and get exact answers out. But for N> 2 bodies that doesn't work and it's not that I need to think a bit harder, maybe crack out some graduate textbooks to find a formula, if I did hopefully the grad books say "Three body problem generally not amenable to solution". I will need to do an approximation, exact answers are not available (except in a few edge cases).