it is like old school with time sharing systems -- you gotta be efficient when your turn comes up in the lab on the punch card and mainframes... instead of the mindless and endless trial-n-error hacking we are used to these days?

Except if you're waiting for your turn to come up so you can vibe code, you're combining mindless trial-and-error hacking with a deranged sleep schedule. It's the worst of both worlds.