[jchanimal]

This has always felt to me like evidence of a sort of computationalism. I am not a computationalist, but the thought is the "universal CPU" needs cycles for each particle. Mass is what takes time to process, so the voids experience no/less computational delay. This reads like the simulation author is messy and constrained, not godlike.

[kgeist]

To me it's not about mass, but more like "maximum information density". There's a limit on the information density (rate of happening?), so when a parameter X changes too much, it affects other parameters -- they become constrained so that the total information density stayed within the maximum limit. That would indeed sound like some kind of computational limit if the universe was a massive CPU with constrained resources...

But I'm a layperson and I have no idea what I'm talking about :)

[uoaei]

Information density is certainly on the right track, I'd put it as causality combined with a locality constraint.

[jryan49]

Photons are massless and have way more interactions that matter probably does.