For what it's worth, I consider the Siri thesis to be very possible and even highly probable. Unfortunately, there isn't sufficient proof at this point for anyone to be able to act upon it. There's a lot of circuмstantial evidence in its favor, but that's about it. People who dismiss it out of hand as being impossible usually do so because it runs counter to an agenda, or falsely reason that lack of smoking-gun proof is proof that it cannot be true.