Sort of a complicated question, I'll try to ask. How was I born me and not another?

[Longhorn]

Thank you for the complement on my username! I understand what you mean, and I have been trying for the past 12 pages to communicate what I have been trying to ask. I know that a rock doesn't have consciousness. I am merely trying to ask what the probability of you actually being born is. People here are saying that the statistics of you being born are 100% because any probability of something that already happened is 100%. You could also say that a person's chance of winning the lottery who just won the lottery is 100%, if you're going by that logic. What I'm basically trying to ask, is, is being born basically like winning the cosmic lottery? Something tells me no, but I just don't really understand how it could be that after not existing for billions of years, I all of a sudden had the misfortune of being born onto planet earth. 

What I meant by being a rock instead of a human being, is that there's other forms of matter besides human beings which all came from star dust. It's conceivable that if a tree or a rock came from the same source of matter as me, then there was also a chance that what formed those pieces of matter could have also been me. So, what I was basically asking is, are there potential pieces of matter around us that didn't win the cosmic lottery to become a human being?

That is really what I have been trying to ask for the past dozen pages. And yes, one of the mods thinks I am a christian in disguise trying to find "chinks in the armor" to insert belief in god or something, which is 100% retarded rubbish. I am keeping at it though because I am honestly amazed that it's taken this long to ask this question. I actually think this is a good question, I think this question belongs on a vsauce video.

I think I get what you're asking. IIRC the probability of you being born the way you are is calculated to be one in trillions, can't recall the exact number, genetically-wise. I don't think it's feasible to calculate the probability of specific atoms becoming your body out of all things, if this is what you mean.

This still doesn't really mean it's like winning the lottery, because before it happens, there is no you to win it. You are the byproduct of it happening. It's hard to put in words.
Yes, it's true that after something has happened the probability of it happening (or rather having happened) is 100%. It's mostly about the perspective you ask the question from. Since you were not there before you came to exist, it's hard to speak of a 'you' at all at that time.