Hello,
I made public my opinion, including this subject, on January 04, 2010 in the article from:
http://searchwarp.com/swa562857-One-Way-To-Explain-The-Universe.htm
Quotation:
<<<The photons, resulted after Big Bang, each of them having a kind of "graviton" with it (in other words, the smallest gravity unit being associated with a photon), have started to join each other, when they were "close enough" to each other, so that the smallest elementary particle is the one formed by joining two photons, which were "close enough" to "connect" each other.
Next, this first elementary particle, was coming in contact with other photon and formed the second type of elementary particle, also two first elementary particles joined together have formed the third type of elementary particle and so on ... in time ... all the today's known elementary particles have been formed.
Therefore, by forming the particles of matter as mentioned above, the resultant of the joined "smallest gravity units", around each particle, have generated the gravity as we know it today (more elementary particles are in a celestial body, bigger/stronger gravity field is around it).
As a conclusion, all forces known in our Universe (including all forms of matter manifestations) are results of these elementary particles behavior/interactions, function of their type (how many photons are containing) and their position in space (how close they are one from each other), having their initial moving, given by the Big Bang, influenced (changed) continuously.
[...]
The ending of each Universe can be a huge black hole, which, if its mass is big enough, in time may produce a new Big Bang, giving birth in this way to a new Universe. >>>