I am not sure I am correct, but if I’m not mistaken, the problem with the Born rule is that no one so far has successfully (in the eyes of their peer physicists) proven they must be true. As in, they’re additional. If you go by the standard Copenhagen interpretation, since Collapse is already an arbitrary additional rule, it already sort of contains the Born probabilities: they’re just the additional rules that additionally condition how Collapse happens. But any other theories that remove objective, additional Collapse from the picture have this big problem: why, oh, WHY do we get the Born probabilities?
Furthermore, we have an even more interesting question: what do they even mean?! Suppose you (temporarily) accept the Born probabilities. What are they probabilities of? Meaning: if there is a 75% chance that you will observe a photon polarised in a given direction, what does that mean, in the grand scheme? Are you divided into 100 copies of you, and 75 of them observe such polarisation, while 25 of them don’t?
That’s… pretty much it. I hope I could help.
There are, though, a few blocks...
For one, I’m not financially independent, and my parents so happen to be Catholic-ish, so they think my dreams of immortality are foolishness of young age, and that cryonics wouldn’t work because of “souls”, whatever they may mean by that.
Also, I happen to live in the southeastern corner of Brazil. I’m… not positively sure that Alcor can reach me, let alone the CI.
I cannot, also, just quit college and teleport to the US and hope for the best. And I will, obviously, sign up as soon as I have the ability to do so and move to the US, and hope that I’m not hit by a car in the meantime.
Still, it’s not exactly a dream I can achieve right now. Sadly.