Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
AMA | September 2024
Sean Carroll
Even though we have the CMB and nucleosynthesis, we still can't see what happened before the Big Bang. We don't even know if anything happened before the Big Bang. That does not stop us from thinking about it. So I think a similar kind of situation would hold if you were in a universe where the galaxies and the CMB themselves had disappeared.
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