Comment: Problem with Penrose's suggestion (Score 1) 295
I have a problem with Penrose's hypothesis - maybe someone can clarify.
[Note IANAastrophysicist - so this may display blatant misunderstanding]
If the Universe goes through cycles of:
Big Bang-->Lots of matter (baryonic particles)-->No matter, just energy (photons) --> BB -->
then this suggests that space was not created at BB only matter - so universe is spatially infinite but matter expands into it following BB and then breaks down (eventually) and then we have a big-bang event again and the cycle repeats.
I thought one essential component of traditional big bang theory was that both space and time were created at the big bang. [I have no problem with the time creation - as time is a function of mass. i.e. no mass => no time]. But how do we get rid of all the space in time for the next BB??