I recently learned that the expansion of the universe means that everything is moving further away from everything else as new spacetime is fabricated between objects (rather than the universe’s edges expanding).
What I can’t find, is the process by which this expansion is happening. If the vacuum of space is considered spacetime, then spacetime can be devoid of all energy. So how does it get made if energy cannot be lost in its creation?
In: Physics
I’m interested in this, too. But your comment said “spacetime has no energy” and also “how is it created without an energy loss”.
It would seem that since it can be devoid of energy, it doesn’t cost energy to create. I’m assuming it doesn’t act like matter, where you would “create” more of it.
Again, I have no clue. I’m waiting on the responses.
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