I derive tremendous value from being able to calculate taxes, tips, and so forth in my head, or right on the receipt, without having to reach for my phone and launch Droid48. (I know some of y'all are also Droid48 bros.) It's even more profound a convenience than knowing how to drive Emacs with just the keyboard and not having to reach for the goddamn mouse.

we need to form a group of intrisics

people who enjoyed knowing and learning in depth, not just apply to sell something