My point is that you can’t step outside the system and say that you’re making a choice. Killing your own (true) grandfather in the past is simply impossible, so you won’t be able to do it, for one reason or another. The details don’t matter.
edit: I guess my position on Newcomb’s is that you should precommit to one-boxing if you can, but if someone is put into that situation with no pre-knowledge, it is too late to bother talking about what they “should” do—their fate is already sealed.
My point is that you can’t step outside the system and say that you’re making a choice. Killing your own (true) grandfather in the past is simply impossible, so you won’t be able to do it, for one reason or another. The details don’t matter.
edit: I guess my position on Newcomb’s is that you should precommit to one-boxing if you can, but if someone is put into that situation with no pre-knowledge, it is too late to bother talking about what they “should” do—their fate is already sealed.