Conformal Cyclic Cosmology (CCC) Revisited

Discussion in 'Astronomy, Exobiology, & Cosmology' started by Cris, Apr 22, 2019.

  1. Cris In search of Immortality Valued Senior Member

    I did a search on the forums and only saw older partial references to this. Things have changed a little and I thought this hypothesis felt satisfying and worth debating further.

    A summary, from my limited understanding -

    Universe continues to expand.
    Black holes become dominant and eventually consume everything.
    Hawking radiation slowly leaks away from each black hole until they evaporate.
    That leaves a universe full of mass-less energy particles that experience neither time or distance.
    What does that mean for space-time? Does that even have meaning in this case? Does location have meaning?
    Isn't that effectively a singularity - > another big bang?
    Rinse and repeat.

    The gist is that the next big bang doesn't wait for all black holes to evaporate but that there is a threshold level of particles that triggers a big bang. That means there will be many black holes still in existence as a new big bang occurs. Part of Roger Penrose's new suggestion is that it should be possible to detect these block holes from the previous aeon in the CMB map.

    As I understand relativity this seems like a meaningful proposition for a cyclic model.
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  3. origin Heading towards oblivion Valued Senior Member

    Shouldn't you have put this in 'Alternative Theories' since this is not a mainstream idea?
    I think that is the exact opposite of a singularity.
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  5. Vmedvil Registered Member

    This is nonsense, something called thermal death or the big rip happens after the evaporation of those singularities.
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  7. RainbowSingularity Valued Senior Member

    at time mark 1:50 the music directly conflicts with the voice.
    it is VERY annoying.
    deliberately done to annoy the listener and put people off ?

    whom ever was editing this and putting the music on forgot that people WANT to listen to what Roger is saying
    i stopped the video at that point and will not watch any further.
  8. paddoboy Valued Senior Member

    It says nothing about any cyclical universe or more BB's. At best and briefly...[1] the universe continues to expand...[2] As the mass/energy density gets less with expansion, the expansion accelerates...[3]Galaxies get further and further apart...[4] WD'S and Neutron stars become black cinders...[5]Stars die and no more fuel for more nuclear fusion [6]BH's become dormant [7] Matter left decomposes and all the forces relating to such are overcome [strong nuclear etc] to original fundamentals...[8] BH decay via Hawking Radiation...[9] Possible [but uncertain] proton decay ...
    [The discovery of DE and the accelerating expansion has seen any thoughts of recollapse evaporate so to speak.]
    And in the meantime space keeps expanding

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