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originally posted by: neoholographic
a reply to: Nothin
The main thing left to know is how much freedom does 3 dimensional universes have.
We will know this by how many dimensions exists.
If there's 5 dimensions, then the multiverse of 3 dimensional universes that could exist would be limited to mostly universes like ours. With 10 dimensions, you would get more variations that can occur.
If dimensions are infinite, then just about any 3 dimensional universe could occur. There could be a 3 dimensional universe with winged pink dwarfs that can fly.
It's like a deck of cards. With 5 cards, you have just 120 arrangements that can occur. With 52 cards, many more arrangements can occur.
originally posted by: Soylent Green Is People
People are continually misunderstanding and misrepresenting what the Copenhagen Interpretation of QM tells us and what Heisenberg's uncertainty principle tells us.
Granted, it is true that (according to QM) the velocity and position of a particle can BOTH never be known at the same time, and that if we humans know one of those factors, we affect the other factor. However, that "affecting the other factor" is not due to our conscious knowledge of the first factor, but rather due to how we gained that knowledge -- i.e., through measurement.
Uncertainty is built into the fabric of the universe, but that uncertainty would exist whether or not humans or other sentient beings are around or not to consciously "know about" the universe. There are particles billions of light years away from us that are doing their thing ion uncertain manner whether we have knowledge of these particles or not. The young universe did its thing using the same physical laws it uses today long before life arose.
That is to say, the universe as a whole doesn't care if humans exist or not. We might affect the part of the universe with which we directly interact, but that's a miniscule infinitesimally small part of the known universe.