"why the assumption that great graphics = huge dev. timescales?"
I'm not entirely sure either.
Some things can be done almost instantly, like higher resolution, better filtering and whatnot. It will take more time to model things and make higher resolution textures, but then again, workstation computers are also advancing.
I'm not entirely sure either.
Some things can be done almost instantly, like higher resolution, better filtering and whatnot. It will take more time to model things and make higher resolution textures, but then again, workstation computers are also advancing.