Just saw another science video that blew my mind...was a talk by Brian Cox called 'A night with the stars'. Apparently as an implication of the Pauli exclusion principle, because no fermions can share the same quantum state, it means everything in the universe is connected; i.e. changing the state of one electron alters the state of every other electron. From basic first year chemistry I was already aware of that principle and the concept of quantum states/numbers, but I always thought it only applied to electrons in individual atoms (and that electrons in different atoms could share the same states). But according to him that isn't the case. As soon as he said it, I automatically thought he must have accidently implied something he didn't mean to....but I researched it a bit and on a physics forum the very topic was being fiercely debated, and it turns out he responded on the very same forum to rebut some of the criticisms directed at him. He first posted this link as a more detailed analysis:
And then responded with this afterwards:
I'm not gonna lie...I barely understand either of the above rebuttals, but nevertheless the conclusion he draws does seem to be consistent with what he said on the tv program - e.g. "In my view, the interpretation of quantum theory presented above is not only valid, but correct in the absence of new physics - and therefore everything IS connected to everything else."Originally Posted by Brian Cox
There's one thing I would like someone to clarify if possible, though...does anyone know if this kind of connection on a universal scale is implicated to be physically real or simply a connection that is an inevitable result of uncertainty (i.e. the result of mathematical ambiguity rather than necessarily a 'real' thing)?