I am not following your reasoning here. Is there some property of organic matter that is necessary for intelligence, are you arguing that intelligence can only

I am not following your reasoning here. Is there some property of organic matter that is necessary for intelligence, are you arguing that intelligence can only arise via natural selection, or something else? While I agree we are no where near creating general artificial intelligence in a way required to found an interstellar civilization, I don't see how it would violate the laws of physics. Which is more likely: it is impossible to create actual artificial intelligence or we just haven't been trying for long enough?