[gumpzilla]

I think one substantial flaw in the design analogy is this. Part of the reason that you suspect the chair in the middle of the glade is designed is because it is an instance of an artifact that IS designed and manufactured by humans. So in this case, it's an excellent assumption to believe that it was designed and put there, because you have lots of previous evidence about chairs being manufactured. But you don't have any kind of evidence like that for mitochondria, Gila monsters or the eye. So assuming that they must have been designed isn't as safe an assumption.

EDIT: Now that I've actually read the rest of the thread, I see maurile made this point as well.