alt Hacker NewsI had a recurring abstract nightmare as a small kid (don't think it was related to fever but I guess those were pretty common) which was basically about a line, gradually becoming messier and messier until it was all just a big jumble. I could never explain it to anyone else, but it terrified me for a time.
I'm wondering if "geometric nightmares" is a reoccurring dream I've had since I was a kid too, basically two cog-wheels linked with each other, but one is extremely huge and the other unbelievable tiny. I'd never describe this as a "geometric nightmares" though, but it does kind of sound similar.
Maybe there is something about "contrasts" as they all seem to be vaguely related to "big difference" basically.