1. I think I'm conscious. Therefore, under the axiom "Consciousness experiences the reality in which it lives the longest." I must be experiencing the reality in which I live the longest.
2. I am not the best version of me. I'm 40 pounds overweight, I have poor sleep habits, I wheeze going up stairs, I don't wear sunscreen when going outside in the summer. There is strong evidence that all of these things shorten my life. There's a couple of moles I occasionally worry about yet I do nothing.
3. So either the versions of me that keep perfectly fit, exercise just the right amount to maintain health without putting too much strain on the body, wear sunscreen, and keep a regular sleep cycle of an appropriate duration are inevitably doomed to die young (is there a 100% chance of a famine across all quantum worlds I exist in, where I'll need to survive off of my body fat for 3+ months?), I am not actually conscious, I just think I am(?), or the proposition "Consciousness experiences the reality in which it lives the longest." must be false.
(Now obviously, you can't take my word for me being conscious, because that's exactly what a p-zombie would say, but you can ask yourself if you are conscious and if there is any way you can be better than you are now; if the answer is "yes" to both questions and you still believe in quantum immortality, you should start trying to figure out what inevitable catastrophe your life-shortening vices make you suited to survive, more than not having those life-shortening vices.)
2. I am not the best version of me. I'm 40 pounds overweight, I have poor sleep habits, I wheeze going up stairs, I don't wear sunscreen when going outside in the summer. There is strong evidence that all of these things shorten my life. There's a couple of moles I occasionally worry about yet I do nothing.
3. So either the versions of me that keep perfectly fit, exercise just the right amount to maintain health without putting too much strain on the body, wear sunscreen, and keep a regular sleep cycle of an appropriate duration are inevitably doomed to die young (is there a 100% chance of a famine across all quantum worlds I exist in, where I'll need to survive off of my body fat for 3+ months?), I am not actually conscious, I just think I am(?), or the proposition "Consciousness experiences the reality in which it lives the longest." must be false.
(Now obviously, you can't take my word for me being conscious, because that's exactly what a p-zombie would say, but you can ask yourself if you are conscious and if there is any way you can be better than you are now; if the answer is "yes" to both questions and you still believe in quantum immortality, you should start trying to figure out what inevitable catastrophe your life-shortening vices make you suited to survive, more than not having those life-shortening vices.)