It's funny, while I've never tried Alacritty (and I'm not likely given the posts I'm reading about it around here), I'm still stuck with xterm, which in some wa

It's funny, while I've never tried Alacritty (and I'm not likely given the posts I'm reading about it around here), I'm still stuck with xterm, which in some ways has a terrible UX. But it's the fastest I've used, has the most correct VT-100 emulation (or at least programs do work), and it has by far the crispest fonts - if you're using bitmap fonts, which most modern terminals don't support anymore. But to your actual point, of course you can write software that runs not slower, or even runs much faster, than the software of 30 years ago that ran on machines of the time. The exception proves the rule (while I feel it's always been so obvious that there was never a proof needed).