If ppl want 4k@60hz you could have that right now, games just need 50% less details & fx like grass, volumetric smoke or shadows of distant objects. It's only about what the focus is - better IQ or 60hz really. You don't necessarily need a PS5 for that. And any future game could bring the PS5 down to 30hz with an overload of details. It's just pure marketing imo.