I have been trying to absorb the Lesswrong near-consensus on cryonics/quantum mechanics/uploading, and I confess to being unpersuaded by it. I'm not hostile to cryonics; just indifferent, and having a bit of trouble articulating why the insights on identity that I have been picking up from the quantum mechanics sequence aren't compelling to me. I offer the following thought experiment in hopes that others may be able to present the argument more effectively if they understand the objection here.
Suppose that Omega appears before you and says, “All life on Earth is going to be destroyed tomorrow by [insert cataclysmic event of your choice here]. I offer you the chance to push this button, which will upload your consciousness to a safe place out of reach of the cataclysmic event, preserving all of your memories, etc. up to the moment you pushed the button and optimizing you such that you will be effectively immortal. However, the uploading process is painful, and because it interferes with your normal perception of time, your original mind/body will subjectively experience the time after you pushed the button but before the process is complete as a thousand years of the most intense agony. Additionally, I can tell you that a sufficient number of other people will choose to push the button that your uploaded existence will not be lonely.”
Do you push the button?
My understanding of the Lesswrong consensus on this issue is that my uploaded consciousness is me, not just a copy of me. I'm hoping the above hypothetical illustrates why I'm having trouble accepting that.
I'm sorry, but I don't understand the illustration. My answer would be the same if my original mind/body was immediately and painlessly dissolved, and it was my uploaded (copied?) mind that experienced the thousand years of pain. Same answer in a more realistic scenario in which I remain physically embodied, but the pain and immortality are caused by ordinary vampire venom rather than some bogus cryonics scheme orchestrated by Omega. :)
I would probably request painless death in all cases. Other people here would choose immortality. But the difference has nothing to do with different outlooks about cryonics and uploading. It has to do with different outlooks about torture.
ETA: Having now read TheOtherDave's analysis, I guess I now do understand the hypothetical. I'm not sure whether I would push the button or not. But if I decided to, I would be anticipating both the joy and the pain of my two future versions.
That is pretty much correct, as I understand it, but it may be worth while breaking that phrase "is me, not just a copy of me" into its semantic parts. I understand it to mean:
Are there any other parts that I have missed?
I'm guessing that the third part above is the one you have trouble swallowing. Ok, but if you do swallow the first two, consider the weirdness of 'someone' remembering that his younger self didn't really care for him.