[andrewflnr]

Yeah, but it's genuinely remarkable that a solution should ever be applicable to more than one problem, other than where it was first devised. It's easy to be numb to that if you've grown up with math showing up all over the place, but that's what the "unreasonable effectiveness" thing is all about.

[ukj]

shrug it is no more; or less remarkable to me than multiple solutions existing for the same problem.

Multiple algorithms (proofs) of theorems. Multiple different theories explaining one and the same phenomenon.

The principle of equifinality is everywhere in open systems.

Only exemplified further that Logic, Programming and Mathematics are essentially three different tools for the same job.