if you were alive a few thousand year ago, you'd be telling me zeus was throwing lightning bolts down. those people really believed in him. what is the difference? to you "holy trinity" believers, does zeus sound ridiculous? of course it does. I can't prove zeus doesn't exist either, but just because you can't prove something doesn't exist, it doesn't mean that it does.
we understand biology, we can manipulate it. we can clone things, we understand the building blocks of life, we've proven that through science we can do everything "god" can. we can destroy the world, we can create life, we can manipulate life to suit our needs (biological engineering), we can kill people, and resurrect them (like during a heart transplant). We can explain what used to be considered miracles. we have tests that prove the placebo effect, we have proven that the human body can heal itself. we can cure disease, we can create disease, we can explain disease. what can god do that the human can't? right now we're recreating the birth of our universe in a deep tunnel system in europe. humans are the answer. this is not arrogance, it is reality.