QI will help to survive not for the whole civilisation, but only for the one observer. He will be either last human in the post-apocalyptic world, or AI.
That’s only true if there exists a quantum future in which the observer can survive alone indefinitely. It could be that absent a sufficient number of survivors there are thermodynamic limits on how long an observer can survive, in which case there might be branches where a lone survivor lives out 100 or even 1000 years but I wouldn’t really call that quantum immortality.
The only such future is where he will be able constantly upgrade himself , and become a posthuman or AI-upload. After that stage, he will be able to create new beings. Basically it means that QI remote future is very positive.
QI will help to survive not for the whole civilisation, but only for the one observer. He will be either last human in the post-apocalyptic world, or AI.
That’s only true if there exists a quantum future in which the observer can survive alone indefinitely. It could be that absent a sufficient number of survivors there are thermodynamic limits on how long an observer can survive, in which case there might be branches where a lone survivor lives out 100 or even 1000 years but I wouldn’t really call that quantum immortality.
The only such future is where he will be able constantly upgrade himself , and become a posthuman or AI-upload. After that stage, he will be able to create new beings. Basically it means that QI remote future is very positive.