I get that light takes time to travel and that we can look at far out stars and galaxies and understand that they’re thousands or millions of light years away.
But we can only perceive light that’s been coming towards us. How can we see the beginning of the universe if we were in the universe? It’s not like we moved faster than light and billions of years later we looked back to see the events happen.
Wouldn’t that old light have gotten to our spacial position way sooner than we physically got here?
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Once you understand the facts you’ve already laid out, it’s fairly simple: we just see stuff further away. The stuff from which we’re recieving 13 billion year old light that was 13 billions light years away when that light was emitted is estimated to be about 48 billion light years away from us today.
So old light from things closer to us did get to us sooner and zoomed past somewhere else. We’re seeing things that we see because they were at the right distance away for their light to get to is today.
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