Basically the title – I have a degree in Aerospace Engineering, but I still can’t answer this question posed by my girlfriend. An infinitely expanding universe implies that there’s a “container” the universe is expanding into, kind of like how you can pour a pancake into a pan & it’ll expand to the limits of the pan. But then that also implies that said container existed before the universe / big bang, which is…wild. Anyway, please ELI5!
In: Physics
It’s easiest to understand if you use this definition of ‘nothing’ – the absence of all **magnitude** or **quantity**.
The universe is expanding into the dearth of magnitude and quantity.
Latest Answers