Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
AMA | October 2024
Sean Carroll
And then you can use your solution to the Friedmann equation to extrapolate it backward in time. And that's how you get a 14 billion year old universe. So that is your theoretical prediction. You say general relativity plus our current knowledge about the universe gives us this prediction. The Hubble constant is also important.
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