Also, if you are indeed scientifically minded then you must be open minded to all theories that explain the state of things unless there is sufficient evidence to the contrary. It is not enough to say that there isn't sufficient evidence. Remember, the absence of evidence is not the evidence of absence. To rule out a theory that could explain our observations without evidence is not scientifically minded at all.
To have a productive conversation, if you believe that the two theories are mutually exclusive then please explain what about one of them being true, means the other cannot be. If you don't believe they are mutually exclusive then my original point stands that the statement by 'spiritplumber' is a non sequitur.
Let's invert the question: can we create, in our labs or in computer simulation, artificial life that could not reliably trace its origins to us specifically?
What would it take to create a (seemingly) self-contained, self-organized environment for the artificial life to live in?
<<< musings <<<