I think the vacant universe could easily be eternal; the universe is mostly empty space after all. People think of space and they think it's a "thing". It's not. It's the lack of things.
The things IN space are a different matter, like planets and stars. They would theoretically need to come into being somehow, so I doubt that matter is eternal. However, space itself is probably eternal in my opinion, considering that space IS nothingness.
The things IN space are a different matter, like planets and stars. They would theoretically need to come into being somehow, so I doubt that matter is eternal. However, space itself is probably eternal in my opinion, considering that space IS nothingness.
