I thought it was simple, rather than seeing the rant as some pre-historic, Native American polytheistic-esque rant, that Bill was simply asking how and why would the world exist...
That being, an ecosystem capable of supporting sentient life, rather than on Mars or any other place else we know of.
Furthermore, how the ecosystem is so perfectly capable of supporting these beings, etc.
Taking things literally seems to be the bane of the left brained people.
Take what O'Reilly said at face value and look at the macro encompassing theme he's talking about, rather than "Bill said we don't know where tides come from, but we do, he's dumb."