I don’t think that addresses the substance of the argument. Wireheading doesn’t have to be about increasing dopamine; what if you were wireheaded to really, really like being wireheaded? And, in case it mattered, not to like anything else, so you don’t have any regrets about the wireheading.
The “Much Better Life” scenario is even more different; here, you presumably continue wanting and liking much the same things that you used to, unless you choose to self-modify later, you just get rid of the frustrating parts of life at the expense of no longer living in the real world.
I don’t think that addresses the substance of the argument. Wireheading doesn’t have to be about increasing dopamine; what if you were wireheaded to really, really like being wireheaded? And, in case it mattered, not to like anything else, so you don’t have any regrets about the wireheading.
The “Much Better Life” scenario is even more different; here, you presumably continue wanting and liking much the same things that you used to, unless you choose to self-modify later, you just get rid of the frustrating parts of life at the expense of no longer living in the real world.