Well we formed under this planets conditions, not the other way around. From what we know about the formation of this planet all things required for life were present. Life on this planet under these conditions was very probable looking from a recent point in time before life formed here. Life should not be on mars currently, its not suitable for life like the earth is.
Well Bill believes the universe came from nothing as be believe god said it and poof from nothing sprang forth the universe. No intelligent atheist would ever say something comes from nothing, that is nonsense and not possible with what we know about the universe.
Also, look at the evolution of man. We evolved to best adapt to the terrain, not the other way around. The planet was not built for us, but us for it.
So you believe that the Earth was just there forever in some semi-perfect state before humans developed from micro-organisms?
Also the point is not whether or not we developed from the terrain around us but why sentient life would even develop in the first place.
It is a long way from a simple one-celled prokaryote to something just sprouting legs and walking and being