This is slightly tangential. But, in line with visual representation of ideas to aid with memory I found that memories of things I did in VR were more like "real life memories" than anything I ever did in a 2d game.

I have a few odd memories of Echo Arena where I swear I can remember feeling the cool air of the arena on my skin and smelling the cold metal walls mixed with sweat. It felt like I was "there".

I wonder if some memory palace concepts could be combined with VR.