**Ask a monkey a physics question thread**

[OngBonga]

so i hear that there is no edge to the universe and that physicists don't know if it's finite or infinite. doesn't the universe not having an edge mean it's infinite?

Does the surface of a sphere have an edge? Is it infinite?

[wufwugy]

Does the surface of a sphere have an edge? Is it infinite?

it does, but one that can only be perceived in at least 3 dimensions.

If it's finite but edgeless, then it wraps around.

are you saying that if we were an infinitely cloned ftl spacecraft, we could travel from an origin into every 3d direction and eventually run into each other?

[OngBonga]

it does, but one that can only be perceived in at least 3 dimensions.

Yeah there's limitations to that analogy, but it at least demonstrates that boundless does not equal infinity.

I have a phsyics question... how does a dead woman cure a brain tumour?