[Explaining how calculations were made for the unlikelihood of Earth being able to support life]
They looked at what humans needed for life. I don't know what the big deal is about the laws of physics. Can't the laws of physics be different in another planet if there is one? I agree with many of the points the movie brought out though, like needed liquid water, the right amount of sun, things like that. If there is another planet out there, they probably have the same Holy Bible we do and everything. Really cool.