Evolution: Mathematically improbably?

[Reach]

All of this research is bogus. I've read several articles of people claiming to have calculated the probability of some event pertaining to things beginning on Earth.

However, their calculations are littered with assumptions. They really have no idea what they're talking about. Its the same thing as saying there has to be a certain number of civilizations in the Milkyway because the Drake equation says there should be. Who has verified that the drake equation actually works? Last time I checked all of the variables in it are also derived from assumptions. The exact same things apply to Yockeys calculations as well.