> While there’s no question Carmack was an exceptional talent, let’s not forget the original Doom shipped with serious network killing bugs in 93 You're confus

> While there’s no question Carmack was an exceptional talent, let’s not forget the original Doom shipped with serious network killing bugs in 93 You're confusing "this is necessary" with "there are no (horrible) problems with this". Doom needed low-level access because it was (at the time) simply impossible to make the game run at a reasonable speed without low-level access. Separately, Doom had bugs, because all software is terrible. GTA does not need low-level access, because everything is has a legitimate reason to do runs at reasonable speeds on modern hardware (or if it doesn't, low-level access won't speed it up noticeably). Separately, GTA has bugs, because all software is terrible.