- Our not wanting to die is a bit of irrational behavior selected for by evolution. The universe doesn’t care if you’re there or not. The contrasting idea that you are the universe is mystical, not rational.
- The idea that you are alive “now” but will be dead “later” is irrational. Time is just a persistent illusion according to relativistic physics. You are alive and dead, period.
- A cyber-replica is not you. If one were made and stood next to you, you would still not consent to be shot.
- Ditto a meat replica
- If you believe the many worlds model of quantum physics is true (Eliezer does), then there already are a vitually infinite number of replicas of you already, so why bother making another one?
Terminal values and preferences are not rational or irrational. They simply are your preferences. I want a pizza. If I get a pizza, that won't make me consent to get shot. I still want a pizza. There are a virtually infinite number of me that DO have a pizza. I still want a pizza. The pizza from a certain point of view won't exist, and neither will I, by the time I get to eat some of it. I still want a pizza, damn it.
Of course, if you think all of that is irrational, then by all means don't order the pizza. More for me."
Is completely off topic. It's irrelevant bordering on nihilism. Sure the universe doesn't care because as far as we know the universe isn't sentient. so what? That has no bearing on desire for death or the death of others.
If knowing that number 2 is true (rationally or otherwise) were really enough, then no one would cry at funerals. "Oh, they're also alive we're just viewing them as dead" people would say. Just because I'm dreaming doesn't mean I don't want to have a good dream or have the good dream keep going. It also doesn't mean I don't care whether other people are having good dreams or bad ones.
As others mentioned this sounds specific to uploading. Luckily for your argument instant-copy uploading is not the only possible future. I find it more plausible that instead of full-blown uploading we will have cyborg-style enhancements which eventually replace our original biological selves entirely for exactly the reasons he objects to instant copying. There's the Ship of Theseus paradox to deal with here, but as long as the change is gradual and I feel I am still myself the entire time, there would be no protests.
Again there's no disagreement here. If we get meat replacements, they could be made one piece at a time with no protest. Our bodies already do this to a large extent during our lives. No one complains when the cut on their hand heals.
Many worlds are nice, except that they are not THIS world.
I'd also throw in Aubrey de Grey's oft used exercise that's along the lines of, do you want to live one more day? (A: yes) do you expect to want to live one more day tomorrow? (A: Yes) If that answer is always true, then you want to live forever. If not then at what point would you change your answer to the question?