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I ascribe a high likelihood that our universe is infinite in extent, so my answer would be ∞. But for any finite volume, the Bekenstein bound will give you an
by Simon_says 8y ago
I ascribe a high likelihood that our universe is infinite in extent, so my answer would be ∞. But for any finite volume, the Bekenstein bound will give you an upper limit.
https://en.wikipedia.org/wiki/Bekenstein_bound https://en.wikipedia.org/wiki/Bekenstein_bound
- stillbourne 8y agoI may be incorrect but the radius of the upper bound of the Bekenstein bound would exceed the length of the lower bound of the whole universe. I came up with my number using the observable universe as the radius and the planck length as the volume. Your number would far exceed mine, I think. Edit: Ah I'm reading this wrong. You are making the argument that an informational density that large would cause a singularity. You are correct, probably.
- Simon_says 8y agoI don’t know for a fact that the universe is infinite, but there is a zero percent chance that the observable universe is the entire thing.