I find thinking about time like that ends up counterproductive. You can read K&R and code/read a little C and never build a single thing in it and have it be wo

I find thinking about time like that ends up counterproductive. You can read K&R and code/read a little C and never build a single thing in it and have it be worth it. For instance, I wrote C in school but basically never use it professionally or for my hobbies (directly at least). But I'd say learning it was worth it - my school curriculum didn't "waste" my scarce resource of time. You do end up learning to think about computers in a different way.