I am an atheist

I am an atheist. That is not to say that I do not believe in the existence of gods, but rather I have never found a shred of evidence to prove even the basic existence of a god. I also don't believe that time travel to the past is possible, for the same reasons. If a god exists, why hasn't it provided clear evidence of his existence? Some people will say that is what 'faith' is. Is it likely that this supreme being would feel the need to play this cruel game on his creations? Why not just instill that faith and belief into our DNA. Following that logic, this god has also implanted doubt and the intelligence to question our surroundings through science, which has made us the superior beings on this planet. So any failings in our faith and belief are actually a product of god's intention,if he exists.