Sony has already started R&D on the PS5

[V-r0cK]

uran10 said:

JRPGfan said:
Is it normal to start these things 4years or so before releaseing a new consol?
They really spend all that time on these things?

All gaming companies work on their next gen as soon as their current gen is released. This is the norm.

This.  They (the big 3) even mentioned that that's how they do it way back.