I didn’t say there was a rule for it.

Four years isn’t enough time for technology to develop and make a significantly more powerful console, that would be like buying a new 1100 dollar phone because they made the camera slightly better and the battery not as shit.

Consoles aren’t just PC’s, their physical architecture is completely different. Even if it was the same, I wouldn’t go out and build a completely new PC every four years because that would be a waste of money. I wouldn’t even notice a difference on most games.