Into the Impossible With Brian Keating cover image

Does the Universe Bounce? A Conversation with Anna Ijjas (#236)

Into the Impossible With Brian Keating

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The Contracting Face

In relativity, you always have to think of two scales. If the universe is dominated by radiation or matter, than what we know is that the radius is expanding faster than the distances between objects. That's why we see more than what was in our causal past. But for cosmologists,. it's very important, a a, to look at a second quantity. And this is the quantity, a a that tells us as to how far wey can see at a given time. This is a hobble radius, right? So e weavror, we can say trogly. This is the distance of causal interactions. Now, slow contraction is decelerating because because physical

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