I found the idea that we are the dependents of self-replicating alien machines entirely possible. We still do not have a clear sense of how life began on Earth,

I found the idea that we are the dependents of self-replicating alien machines entirely possible. We still do not have a clear sense of how life began on Earth, or how rare the conditions necessary to begin life are. If life began on some other rock in space and got transfered to Earth in its very early form, it would be far to say that it was a self-replicating alien machine.