When, on July 20, 1969, a spacecraft landed on a rocky basalt crater of the Moon, one of its two astronauts would recall, “It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet.” It is this tiny pea in a vast Universe that we call our home.
How did the Earth become our home? That certainly didn’t happen overnight. We all know Rome was not built in one day. Well, neither was the Earth, a tiny speck in an immense Universe. It actually took billions of years to get our home set up the proper way so we could enter and comfortably live there. Some see this as the outcome of a long, protracted sequence of coincidences. Others think this process had to be the way it was, because it was intended to be that way. Who is right?