In Ben Stein's new film "Expelled," there is a great scene where Richard Dawkins is going on about how evolution explains everything. This is part of Dawkins' grand claim, which echoes through several of his books, that evolution by itself has refuted the argument from design. The argument from design hold that the design of the universe and of life are most likely the product of an intelligent designer. Dawkins thinks that Darwin has disproven this argument.
So Stein puts to Dawkins a simple question, "How did life begin?" One would think that this is a question that could be easily answered. Dawkins, however, frankly admits that he has no idea. One might expect Dawkins to invoke evolution as the all-purpose explanation. Evolution, however, only explains transitions from one life form to another. Evolution has no explanation for how life got started in the first place. Darwin was very clear about this.
In order for evolution to take place, there had to be a living cell. The difficulty for atheists is that even this original cell is a work of labyrinthine complexity. Franklin Harold writes in The Way of the Cell that even the simplest cells are more ingeniously complicated than man's most elaborate inventions: the factory system or the computer. Moreover, Harold writes that the various components of the cell do not function like random widgets; rather, they work purposefully together, as if cooperating in a planned organized venture. Dawkins himself has described the cell as the kind of supercomputer, noting that it functions through an information system that resembles the software code.
It is ridiculously implausible to think so. And the absurdity was recognized more than a decade ago by Francis Crick, co-discoverer of the DNA double helix. Yet Crick is a committed atheist. Unwilling to consider the possibility of divine or supernatural creation, Crick suggested that maybe aliens brought life to earth from another planet. And this is precisely the suggestion that Richard Dawkins makes in his response to Ben Stein. Perhaps, he notes, life was delivered to our planet by highly-evolved aliens. Let's call this the "ET" explanation.