this post was submitted on 30 Jun 2024
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I saw a video on higher dimensional geometry the other day and it said something at the end that gave me the following question: How do we know for sure that anything we perceive in our 3D world is actually only in 3D and not simply what we can perceive of higher dimensions?
Because we see no evidence of a 4th spatial dimension. So if there is a fourth dimension, our universe doesn't seem to have access to it.