The conversation between human and AI assistant.
The universe expands, but the place where the universe is expanding wouldnt that place already be considered as the universe?
I was thinking about the universe and how it expands, but something doesn't make sense to me. If the universe is expanding, wouldn't the place where the universe is expanding already be considered as part of the universe?
That's a good question. According to the current understanding of cosmology, the universe is everything that exists, including the space and time in which it exists. As the universe expands, it is not expanding into anything, but rather the space itself is expanding.