We are not a human experiencing the universe.We are the universe experiencing a human
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Everything we see around us including us came from the big bang, if that was not the case then that would be titillating.
Roger Penrose has some pretty interesting stuff regarding cyclic universes that is consistent with mathematics. Dark matter and dark energy in this universe is a carryover from the prior universe. Photons from prior universe can travel into our universe because photons have no mass, so in theory we perhaps could detect those photons.
I really like Penrose, he is such a lovable little old man with english charm and whit wearing suits that are too big for his frame.
Roger Penrose has some pretty interesting stuff regarding cyclic universes that is consistent with mathematics. Dark matter and dark energy in this universe is a carryover from the prior universe. Photons from prior universe can travel into our universe because photons have no mass, so in theory we perhaps could detect those photons.
I really like Penrose, he is such a lovable little old man with english charm and whit wearing suits that are too big for his frame.
Time travelling to the past is consistent with mathematics
but Einstein still rejected its possibility. If the hypothesis
or theory of cyclical universes is consistent with mathematics
the size of the universe has to be infinite for it to evolve eternally
without violating the second law of thermodynamics. A
finite universe going forward has to reach maximum
entropy at some point when time ends.
If you look at the Cosmic Microwave Background, the early universe was at maximum entropy; same temperature, same distribution/density of matter. The universe that we see now is of much lower entropy than the early universe shown by the CMB.
At the time of the big bang the universe had to be infinitely
dense. I have no idea how its density could be the same in
its early stage as it is now. The universe was and is made up
of matters, not just photons. I don't see how the cosmic
microwave background could reveal the total entropy of
the early universe. You have to take into consideration
of the addition of black holes since the big bang to figure
out the total entropy of the universe.
dense. I have no idea how its density could be the same in
its early stage as it is now. The universe was and is made up
of matters, not just photons. I don't see how the cosmic
microwave background could reveal the total entropy of
the early universe. You have to take into consideration
of the addition of black holes since the big bang to figure
out the total entropy of the universe.
The density was much higher during the early stages of the universe but the density was more consistent than it is now, temperature differences in the early universe were also lower in the early universe than it is now. In the early universe, as shown by the CMB, it is not possible to evolve the system into a higher entropy state because the matter was already equally distributed and temperature (energy) was also equally distributed.
Also, the majority of the entropy in the universe right now is contained within black holes, exactly what happens to that entropy is not yet known for sure.
We have not measured hawking radiation yet. Entropy and information are intrinsically linked, a high entropy system contains low information and vice versa. Hawking before he died was working on the theory that the information contained in a black hole is preserved but in another universe. If that is the case then black holes create more entropy than one would expect as everything radiating out from a black hole has less information than the incoming flow of matter and that information (low entropy) is then dumped into another universe. Of course, that involves wormholes, which are allowed in the math and if they do exist they could only exist in places with very curved space-time and black holes are the best candidate we know of.
The new square kilometer observatory might be able to detect what lies on the opposite side of a black hole, it is one of the hallmark projects for the new observatory.
