For atheists, this is an easy answer. There was a big bang and everything just fell into the right place and oops, here we are. Sad isn't it that their idea of the creation of life is so limited to chance.
What is absolutely true for everyone (atheist and believer) is that life begins in the same way. In a matrix ~ your mother's womb. While there, she was already communicating to you social reality, a 'higher' dimension unknown to you yet from which she exists in... communicating to you a reality that you cannot see.
She can say that she knew you before you were born. "Before I formed you in the womb I knew you..." Jeremiah 1:5. Every mother around the world talks to their baby, sings and tells everyone to expect its coming 'you'.
If mother knew/knows you before you were/are born, how can she explain that to you or anyone? "In the beginning was the Word and the Word was with God, and the Word was God. he was with God in the beginning. Through Him all things were made; without Him nothing was made that has been made. In him was life, and that life was the light of men." John 1:1-5
For the atheist, can she just respond, I felt something move and then a human was born from my body, a higher form of animal. It has relevance as a by product of sexual activity which can be and used to be an advantage. Today, many people think we don't need such a burden as it is no longer an advantage.
I have not done the research, but maybe I can imagine it. Ask any expectant mother, when her child stirs if she does not know him/her as a person. Ask if she honestly thinks that her child is by product which may or may not be useful to society; perhaps,a mistake, a problem for greater society. Ask any expectant mother if she hates her body as she feels it change, feels life growing in her and if she thinks 'thanks to the big bang, I am able to produce an organic being that will or will not make a significant contribution to greater society.
It seems the concern should be or maybe it is on the minds of many atheists minds ~ the amount of risk involved. They are likely concerned whether or not a child born of any woman could amount to something great... or at least be a contribution to society or not? Rather they maybe thinking that the risk of another burdensome individual is too great.
Should a mother think like that? Maybe... if she would if she were an atheist, a non believer in God the Creator of heaven and earth and of all things seen and unseen.
We could imagine that in the future, anyone may be able to choose the kind of child she/he can have in a controlled economy/society. We could imagine that controlled conception would be preferred as there would likely be a greater chance that a genetically modified child would make a greater contribution to society or at least have a place in society if there is a vacancy.
In that futuristic world, will the question ~ How did the world begin, even matter?
Speak out Godly Women, Speak up for the Creator of heaven and Earth!