[seventyone]

We still emulate a typewriter that communicates over telegraph in our modern *nix OSes. Good luck removing that and keeping everything built upon it

[Clamchop]

The legacies of systems are a practical reality, not a "core principle" of computer science, that's the issue with the claim. Computer science barely even concerns itself with the limitations of real hardware, much less giving two shits about software legacies.

The conflating is no doubt coming from how many cs programs heavily comingle computer science with vocational training for becoming a programmer, but they're not the same thing.