Nhot vectors are fucking lifesavers.

For me it's the difference between searching a (2500*70)^n solution space, vs 64220*m solution space.

Also, that moment when you're a lazy shit and write your functions to use variables in the outer lexical scope because its easier than passing in 200+ variables whenever you need them--only to discover you need to enclose your global state in a main function, breaking the external functions...

closures and nested functions to the rescue.