Hi Paul. I completely agree that I see no reason why you couldn't "get a functional human out of a brain scan" --- though even there, I probably wouldn't convert my failure to see such a reason into a bet at more than 100:1 odds that there's no such reason. (Building a scalable quantum computer feels one or two orders of magnitude easier to me, and I "merely" staked $100,000 on that being possible --- not my life or everything I own! :-) )

Now, regarding "whether there can be important aspects of your identity or continuity of experience that are locked up in uncopyable quantum state": well, I regard myself as sufficiently confused about what we even mean by that idea, and how we could decide its truth or falsehood in a publicly-verifiable way, that I'd be hesitant to accept almost ANY bet about it, regardless of the odds! If you like, I'm in a state of Knightian uncertainty, to whatever extent I even understand the question. So, I wrote the essay mostly just as a way of trying to sort out my thoughts.