You might be on to something, but I can't understand it properly until I figure out what "decision-theoretic significance" really means, and why it seems to play so nicely with both classical and quantum coinflips. Until then, "measure" seems to be a more promising explanation, though it has lots of difficulties too.
What looks, at the moment, as the most feasible technology that can grant us immortality (e.g., mind uploading, cryonics)?
I posed this question to a fellow transhumanist and he argued that cryonics is the answer, but I failed to grasp his explanation. Besides, I am still struggling to learn the basics of science and transhumanism, so it would be great if you could shed some light on my question.