We don’t. Unless you can go faster than the speed of light (spoiler: you can’t), then you’re limited to the observable universe. And that’s the theoretical maximum, assuming you can use some sci-fi super-tech to actually travel (very close to) the speed of light. If you can’t manage extremely high fractions of light speed, then your available, accessible universe is correspondingly smaller.
If you took astronomy or cosmology in university, you know that.
We don’t. Unless you can go faster than the speed of light (spoiler: you can’t), then you’re limited to the observable universe. And that’s the theoretical maximum, assuming you can use some sci-fi super-tech to actually travel (very close to) the speed of light. If you can’t manage extremely high fractions of light speed, then your available, accessible universe is correspondingly smaller.
If you took astronomy or cosmology in university, you know that.