RubyPorto t1_ja9asum wrote on February 27, 2023 at 8:08 PM

Reply to comment by apoeticturtle in Eli5 Help, please my brain hurts. If there is an expanding ring of light from the big bang, what is outside it? by ExtremeQuality1682

I'm not sure I can. Every physical analogy is going to be expanding into a medium.

It's also not really "expanding into nothing." The coordinate plane of space is itself expanding, full stop. It's not expanding into anything (or nothing).

It's a fact that you just have to decide you're ok with, without a relatable model to compare it with.

apoeticturtle t1_jabgplj wrote on February 28, 2023 at 5:40 AM

There are many things in my life that I do have to decide if I am OK with, but thankfully not this one. I cannot even imagine "nothing" and having less than nothing (that which lies beyond our Universe's edge) is as mind-boggling as it is speculative. All the energy in our Universe may be just a tiny fraction of all the energy everywhere/when. It seems more likely, to me, that our Universe is a tiny part of something bigger. If not, what a waste of energy and time/space.