One of the great philosophers of the Twentieth Century was the Jesuit Teilhard de Chardin. He was very optimistic. He believed that mankind would not destroy itself, but work toward a stage of unity he called the Omega point, and that we were working toward that now.
To those who believe as he did in a Creator (Soul of the Universe) this does not seem preposterous. As a matter of fact, it’s downright sensible. If enough people pray for its accomplishment, why not?