The layman's perspective sounds reasonable enough, but seems to fall apart on closer inspection. What makes a human brain different from a simulation? Why would the AI have an easier time reconstructing the mind of someone who died on March 20 than reconstructing a copy of you on March 21? Why are future simulations of you necessarily less "significant" than current you? This looks suspiciously like a theory constructed specifically to be testable only by death, i.e. not testable to the rest of us.
(The following probably won't be understandable / won't appear motivated. Sorry.)
Why would the AI have an easier time reconstructing the mind of someone who died on March 20 than reconstructing a copy of you on March 21?
You can make a copy, but as soon as you simulate it diverging from the original then you're imagining someone that never existed in a timeline that didn't actually happen. Otherwise you're just fooling yourself about what actually happened, you're not causing something else to happen. Whereas if you revive a mind that died and have it h...
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.