“ in my opinion I’m talking about science/nature.” You claim there was nothing then there was something.You claim there was non-life then there was life. Even if you ask a child they would all put there hand up and say this is impossible.
A singularity does not mean nothing. There is no consensus on what was there before the Big Bang, but most think all matter in our universe was confined to an incredibly small space. What it was is unknown, but there are many different ideas, and nothing to do with matter appearing from nothing.
The creationist view of God magicking the Universe from nothing suggests this though. And I say creationist and not Christian, because many Christians do accept the Big Bang and some astronomers, who are perfectly good Scientists, believe in a god.
