Crash,
The question here is a good one, though. I keep hoping someone will make an effort to actually do the numbers, to see if we are in a ball-park or reason. Because of what we know of genetic engineering, we can suppose that new genes could be introduced from viruses or bacteria. Lot of those around for random mutations to happen to, over a very long time, and they reproduce so quickly, so we have lots of room for natural selection. But is it enough? As Greenblue notes, to get a new and useful protein requires an incredibly large number of steps, all of which have to be adaptive for a while, anyway.
And what are you hoping for, Crash, and willing or unwilling to believe? What do you do with your subjectivity?
Stephen