I don't know why you are going here. I could just as well ask you what started the Big Bang. Neither can be answered.
When I said beginning, I meant the beginning of organic life. Organic life is composed of mostly six main elements: Carbon, hydrogen, nitrogen, potassium, oxygen, and sodium, with a smattering of a few other elements in the mix. ( I would add that the formation of carbon in the universe was quite remarkable in itself, but that's another issue).
Now you would agree that atoms are just atoms, right? That they in themselves have no inherent intelligence in them. And it was shown in experiments like the Miller Experiments that certain amino acids could form under certain conditions. But while amino acids form the basis for protein and subsequently DNA, that is as far as those experiments would go, at least for the present time. The problem is that amino acids are step one in a very long process to get to a viable living cell.
Even in the most fundamental and primitive of cells is a complexity that goes far beyond the rutimentary behavior of organic elements and molecules. Just pick up a college biology textbook and you will see a fantastical jump from this primordal pool of chemicals to a functional, albeit primitive cell. These cells are extremely complex, like miniature factories. It is organized and efficient. And if that isn't enough, this first cell to supposed to happen spontaneously, not only did so, but at the same time, gave itself the ability to
replicate. This against astronomical odds in even forming the basic DNA molecule. Something is missing here.
My question is why and how would atoms and molecules behave far beyond their inorganic properties to form a living cell. Maybe this will be discovered through scientific means. But you have to admit, it is daunting be any stretch of the imagination that mere chemical reactions could produce life.
