Why is the big bang deemed the beginning of all beginnings?

This time the answer can be formulated under the form of a question. That is: If you have an infinitely big animal farm (with chickens...) for infinite amount of time - then what is the probability for no more than one egg to appear? The answer to this question should speak for itself about the probability that the big bang is the only type of matter ever created. Even if you assume that time doesn't exist prior to the bang - this is purely erronous concept since the very existence of virtual particles creates time...it doesn't matter if the process is not continous. The obvious problem is...namely the type of matter. It's quite possible that the big bang is the creator of any baryons, leptops, etc...but other bangs might create exotic matter that is undetectable or even 'unreactable' with the matter in our matter. So in a nutshell: it's time to think not of a Big Bang theory but of a Fireworks theory - speaking of which...it's quite likely that right now new universes are being formulated somewhere in space, just like it has happened 13 billion years ago....that is new naked singularities. What do you think? 10x!