No thinking human being has ever made that claim, and those who don't believe in Creation, DO NOT believe that everything came to be 'just by chance'. We don't have the scientific knowledge, yet, of what events led to the current universe, including everything that we individually can see, but we do have enough scientific information to know how our part of the universe came to be (how the earth and the visible other bodies came about). The Big Bang Theory provides a credible explanation of what immediately preceded what we see today, but it does not give us any information of what occurred in the infinite period prior to the 'Big Bang'.<quoted text> So we see these creations of man and but yet we also see things man can barely explain and attribute them chance, though these other creation far surpass mans intellect or understanding. Who would be believe a man threw a bunch of metal, electronics and rubber into a pile and came back sometime later to find a lamborghini. And then believe no one touched that pile.
Since we are talking billions of years ago, anyway, it is kind of difficult to be able to go back and look at what happened
billions of years ago. From what we can obtain samples of, on our earth, and the few other bodies that man has visited, we can determine much about how they came about. We know many of the steps that occurred in the formation of the earth, and the history of earth's evolution up to the present, because the records are preserved within the surface of the earth (rocks, etc).
We have traced various major events on the earth, by the records in the ice, rocks, and by dating various items. Through these methods we know that the earth did not suffer a complete Flood covering all land and killing off all living things, during the period since man has been able to leave behind records, and we also know that the amount of water necessary to completely cover all the land mass of the earth cannot exist on this earth - so a Flood never occurred.
Smaller area floods occurred and continue to occur covering very small parts of the earth, but the water that covers these areas is taken from the existing water supply of the earth, so what water covering certain geographical locations at any one time is removed from the overall supply to the rest of the earth.