On 7/7/2021 2:04 PM, Jason Resch wrote:
On Wed, Jul 7, 2021 at 3:43 PM 'Brent Meeker' via Everything List <[email protected] <mailto:[email protected]>> wrote:On 7/7/2021 10:09 AM, Jason Resch wrote:On Wed, Jul 7, 2021 at 11:53 AM 'Brent Meeker' via Everything List <[email protected] <mailto:[email protected]>> wrote: On 7/7/2021 2:24 AM, Jason Resch wrote:On Wed, Jul 7, 2021, 12:14 AM 'Brent Meeker' via Everything List <[email protected] <mailto:[email protected]>> wrote: On 7/6/2021 6:50 PM, Jason Resch wrote:On Tue, Jul 6, 2021, 9:39 PM Bruce Kellett <[email protected] <mailto:[email protected]>> wrote: On Wed, Jul 7, 2021 at 11:29 AM Jason Resch <[email protected] <mailto:[email protected]>> wrote: On Tue, Jul 6, 2021, 4:07 PM 'Brent Meeker' via Everything List <[email protected] <mailto:[email protected]>> wrote: On 7/6/2021 10:34 AM, Jason Resch wrote:On Tue, Jul 6, 2021 at 12:27 PM 'Brent Meeker' via Everything List <[email protected] <mailto:[email protected]>> wrote: And you're never going to find a being that behaves intelligently based on information that can be quantum erased. You need only a quantum computer with enough qubits.Can you prove that? How does this quantum intelligence ever arrive at a definite decision? Prove? No. But I think I can justify it: 1. Quantum computers are Turing equivalent, they can compute anything a classical computer can. 2. Human brains are believed to operate according to physical laws, all known of which are computable. 3. Humans are conscious. 4. By any of: Chalmers's principle of "Organizational invariance", or "multiple realizability", or the "Generalized Anti-Zombie Principle", or the "computational theory of mind", a functionally equivalent computation to that of a conscious human brain will be equivalently conscious to that brain. 5. Quantum computers are reversible. By 1 & 2, a quantum computer can simulate a human brain. By 3 & 4, such an emulation will be conscious. By 5 any computation performed by a quantum computer can be quantum erased by reversing the circuit back to its starting state. It reaches a definite decision by virtue of completing its processing before ultimately being reversed. This prevents an outside observer from learning the decision, but it's made nonetheless during the course of the processing. How do you know that it has reached a definite decision? Without having it print out some irreversible record? If it prints out a (pseudo-)classical record, the initial state is not recoverable. Bruce By either: 1. Analyzing the circuitBut the question is whether such a circuit is possible. Do you disagree with any of the five premises I defined above? If not do you see a flaw in my reasoning or conclusions? If not, then why shouldn't such a circuit be possible?This what I find dubious: /"It reaches a definite decision by virtue of completing its processing before ultimately being reversed. This prevents an outside observer from learning the decision, but it's made nonetheless during the course of the processing." / First, I doubt that it both reach a definite decision and have that quantum erasable. If you doubt it reaches a certain definite decision state, you could interrupt the quantum computer midway through its processing and entangle yourself with one of its superposed states to verify that the AI/mind was in a state of having reached a definition conclusion.?? If I do that by entangling with a superposition, then I either collapse it or "I'm of two minds".Yeah you spoil the process by interrupting it early, but it lets you verify the computation reaches those intermediate states in the course of its normal evolution, including in those that you allow the algorithm to run to completion.Second, you've made "decision" something internal. Intelligence requires acting in the world. The environment for this AI are the qubits initialized as the input to the mind. It acts in this world by performing actions that ultimately affect the output of this quantum computation.My original point was, "And you're never going to find a being that behaves intelligently based on information that can be quantum erased." In the environment A=0, B=0, and any other set of A, B values the algorithm outputs B=1 and then erases it. Is this intelligent behavior?It's perhaps a thermostat level of intelligence, but you can make it arbitrarily complex, as in Deutsch's AI example that does the same thing as this simple circuit.
No matter how complex you make it (and maybe because you make it complex) you cannot both act on it and quantum erase it. There's a reason that intelligent beings live in a quasi-classical world. They would never evolve in a world that was reversible. And as Bruce points out, this world is not just statistically irreversible, it's inherently irreversible because all but a finite part is receding faster than the speed of light.
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