Comment Re: Not an expert (Score 1) 87
Which I've always hated because it makes no sense. If space itself inflated, what did it inflate into?
There is no such thing as "space", apart from "spacetime.". You can go, "there's a lot of space between our sun and Alpha Centauri" but if you were moving in that direction at close to the speed of light, instead you'd go, "hey, these two stars are super close to each other." Arbitrarily so: you can make them as close as you like, you can put as much energy into changing your frame your reference to make them centimeters or millimeters apart if you want to. Where did all that space go?
You can't really talk about space expansion in the instinctual model we have in our brains as 'space.' That's not "reality" it's a useful model of reality that our brains create to help us accomplish things, but using that to counteract general relativity results *which are testable and have been verified in a variety of ways* is like saying a description of what's going on in CPUs and GPUs don't make sense because it doesn't match up with the video game you're seeing displayed on the monitor. That's an interpretation of states in the computer, in the same way everything you see and experience is an interpretation of reality.