How can an atheist, be 100% certain, that there's no God, Quoting: Anonymous Coward 24591249
when there's no 100% proof, that life originated from inorganic matter, or abiogenesis?
The current best 'proof' of abiogenesis, is that liposomes, havw an auto-catalytic nature.
However even then, lipsomes, comes from something, that's already alive, the cell membrane.
Since you capitalized the word God I am assuming you are specifically referring to the God of the Bible that Created the world in 6 days according to his absolute Word written down.
That's rather easy.
The Bible cannot be the inerrant word of God because, well, it contains lies and inconsistencies and doesn't prove jackshit.
If you rephrased your statement as to how atheists can be 100% certain there isn't anything that we would describe as godlike then I agree with you.
But that doesn't give any credence to your creation myth.
That I am an atheist does not mean I am as convinced that abiogenesis started life on Earth as you are certain that the God of the Bible exists.
I can safely say I am not certain, although I do think it is by far the most likely option.