Cast your mind back to 2020. As Sony and Microsoft promote their forthcoming consoles, which in some respects seem to represent the smallest graphical leap yet between generations, one feature stands out among all the talk of SSD storage and ray-traced reflections: a move to 60fps. Some games will even run in 120fps on these new machines, we’re told, a feat beyond even many gaming PCs when it comes to running contemporary blockbusters. With such assurances in place, it was easy to imagine that this smooth, fluid gameplay would characterise the next generation.