[walteweiss]

Do you mean time and energy for optimising things that make no sense, so you have no time and energy to optimise things that make sense?

[immibis]

Not optimising things that "make no sense" is how we ended up with operating systems needing gigabytes of RAM just to boot, and AAA video games taking over 100GB each. A reasonably efficient system is the sum of reasonably efficient parts, or else you end up in UniformlySlowCode hell.