/vr/ - Retro Games

Not strictly a /vr/ but still
Somebody please explain me the Carmack's (and IDs) fascination with megatextures?
I understand the concept that they are the next step in the evolution of texturing, but it's pretty much clear that that sstep has turned out to be a flop - they are unoptimised, designers don't know how to use them to full extent so there's still tiling, and it produces results that look like something out of Doom 3 or Fallout 3 (picrelated)