I don't disagree. And for 90% of them worrying about cache locality or branch mispredictions on a daily basis would be a waste of time. It's fine to deliberatel

I don't disagree. And for 90% of them worrying about cache locality or branch mispredictions on a daily basis would be a waste of time. It's fine to deliberately ignore such concerns. It's somewhat less fine to know absolutely nothing about how programs are actually executed, and what makes them go fast.