Something here to get you thinking☺.
I am thinking such speculation is no better than ancient humans speculating thousand of years ago about creation.
I respect maths but .....
Well Leon you certainly have missed something there... but the idea is this...as the Universe runs down and the black holes evaporate all we will have will be photons which are mass less and the hypothisis seems to be that as there is no mass the Universe has no way to measure how big it is and as such can see itself as small...I think that is the idea...and such smallness may be the environment we would see at the start of another big bang...so you can see why one needs to be prepared...I, needless to say have been making extensive preparations just in case such speculation translates into reality.
Its raining here☺ so I have been planing various projects all of which must now take into account what may happen when all the black holes evaporate.
The greatest concern is no one is sure that when the black holes evaporate if information will be lost or not...if its not I guess everything will be ok...but if all information is lost I just dont know what to expect as to how the next universe will arrange itself...clearly a team needs to be put together to plan for such a contingency....
Pleade run it by Alice and see what she thinks could be done.
All I can think to do is issue each photon a note as to what to do☺ ....
Alex
current epoch
Universe as we see it, diameter around 100 billion light years
next epoch
Andromeda and milky way collide, this causes most free hydrogen to be
consumed in a burst of star formation of hot blue stars which soon burn
out.
next epoch
Expansion of the universe leaves only the gravitationally bound local
group as the visible universe.
next epoch
Last star in the local group becomes a red dwarf. Leaving only cold
matter, red dwarfs and black holes.
next epoch
Red dwarfs consume all there low mass elements and become blue
dwarfs
next epoch
Last blue dwarf sputters out leaving only black holes and cold matter
next epoch
Black holes evaporate leaving only cold matter
next epoch
Last proton of cold matter decays leaving only photons
next epoch
Due to continued expansion of the universe, each photon is contained
within its own visible universe
At this point every massless photon is contained within its own visible universe. With nothing to relate to itself, the concept of motion and time is essentially irrelevant as is mass.
Maybe then each photon starts its own big bang, anyway who knows...
Hi Paul
Thank you so much for your wonderful post and sharing your vast understanding of cosmology.
I find cosmology most interesting and have been following Prof Robert Penrose of late and he seems rather taken with the idea of the effect of there being no mass left in the universe and his conclusion as I understand what he says that that condition is similar to the precondititions of the Big Bang...I like the idea of course as there is no point of creation required☺.
Alex
Hi again Paul
I notice you mention a size for the universe which I take as the size for the observable universe ...may I ask... do you find anything to suggest there may be more than that?
Alex
