How does quantum immortality make sense on a theoretical level?

Question

I have read about it and to some degree I can grasp the basic concept, but if everyone keeps escaping death in certain timelines, shouldn’t there be people in extremely old age around us? Or are there only specific timelines where death does not occur? Is there something I am missing or am I thinking too hard about this?

In: Physics

Answer 1

It is a thought experiment.  

The purpose is to think about it, and think about what the consequences would be, and think about how you’d handle those consequences.  

That’s all.