Comment by roncesvalles

I never made any claims about optimality. It works (for whatever reason) hence companies continue to use it

If it didn't work, these companies wouldn't be able to function at all.

It must be the case that it works better than running a RNG on everyone who applied.

Does it mean some genius software engineer who wrote a fundamental part of the Linux kernel but never learned about Minimum Spanning Trees got filtered out? Probably. But it's okay. That guy would've been a pain in the ass anyway.