I had an incredibly frustrating conversation this morning trying to explain the idea of quantum immortality to someone whose understanding of MWI begins and ends at pop sci fi movies. I think I've identified the main issue that I wasn't covering in enough depth (continuity of identity between near-identical realities) but I was wondering whether anyone has ever faced this problem before, and whether anyone has (or knows where to find) a canned 5 minute explanation of it.
It's entirely possible. I don't claim a complete understanding of MWI and its implications yet. But my current understanding is useful for my purposes, so I'm ok to stick with it.
One of the weirder implications of MWI that I've read here is that quantum immortality implies that it's literally impossible for me to die. Which means that if I was to attempt to kill myself the outcome would be large numbers of universes in which I hurt everyone I care about by killing myself, while from my perspective it wouldn't have succeeded and I would then have to live with the fallout from a failed attempt. I'm not sure how much I believe that this would actually happen but as a form of Pascal's Wager for suicide it's extremely effective at making me not want to test it.
You seem to be identifying yourself with only those beings like you that exist in universes like this one. I don't think that's necessarily valid, and removing the requirement adds more interesting options.
Let's say you exist in distribution of laws of physics, not just locations in this one. Then, attempting to kill yourself could change that distribution for those of you that survive.. in particular, it could vastly increase the measure of those extremely complex worlds that care about intelligent life.
For reasons that have been thoroughly explained prev... (read more)