What bothers me about Big Bang Theory, as it has been explained to me by some unbelievers, is the preposterous notion that particularity can come of raw 'chance'. They speak of a homogenous period soon after the first expansion, that eventually began to present 'chance' accumulations and dispersions. HOW? Chance cannot, by definition, cause anything. At least one writer was more honest, though poetic, (which isn't usually quite honest), in that he trusted what science has always depended on —cause-and-effect: He said something like, "The seeds of all we see now were sown in the Big Bang." Chaos theory* is not fact, but a description of the facts for which we just don't know the causes; we can't crunch the numbers.
What the unbeliever can't bring himself to look at, is the simple fact that the particularities we see now, are the result of particularities at start-up, which fact necessarily demands explanation the scientific community won't provide.
There is no such thing as 'chance' or 'random' except in the "I don't know" of the human mind. I have come to detest the dual use of the terminology of 'chance' and 'random' which all true scientists admit mean only, "I don't know", yet they will turn around and use it as causative principle in their descriptions of the beginnings.
*I do delight in Chaos Theory, by the way. I particularly love the fact that in any 'chaotic' system, there are always limits to the excursions.