I think one day we will be able to prove that it was all a random case of right place right time. At some point we will find another planet with similar circumstances as ours and we will be able to recreate the same process of evolution, our own little ant farm of creatures. Even more thought provocting what if we are the ant farm for a more advance civilization trying to do figure out there own exsistence. Thats a little out there but even that seems for likely to me than some overlord type guy who watches and judges all of us until the day we die, and then based on that determines if we go to a good or bad place for eternity.