dougmerritt, 6 months ago

@johncarlosbaez @gregeganSF
Right, such things are notoriously difficult to imagine.

"if we lived in 1,000,000-dimensional space. I guess there's a lot of evidence that life can't exist in such high dimensions,"

Max Tegmark wrote a 1997 paper that was an excellent exploration of that, although it had D > big, not D = 1,000,000

"On the dimensionality of spacetime", M Tegmark 1997, Classical and Quantum Gravity, 14, L69-L75

Splash page that links to paper, because it has a nice graph that serves to summarize at a glance (# time dimensions versus # space dimensions versus viability/nonviability for life and indeed matter):

https://space.mit.edu/home/tegmark/dimensions.html

I mentioned this in recent memory, but I have reason (edit: oops, no reason) to think anyone saw that.