> Immortality becoming a possibility is also an opportunity for changing our social structures. There's nothing wrong with Bezos or Gates living forever, as long as their social and financial dominance isn't also guaranteed to live forever.
While that moment may provide an opportunity, my view is that a ossification will set in more broadly in the long term.
> Stagnation follows from an assumption that neuroplasticity is zero. That is one of the problems that need solving for immortality anyway, but I don't see why it's unsolvable. If some technique rejuvenates at the cellular level, it could also work on neurons.
Possessing the capability for change is not the same as possessing the desire to see that change through. Those with power seek to hold on to it. An extreme example would be that of dictatorships and monarchies. Death ultimately limits the harm those people can cause while also providing a moment of instability which may be seized to alter the system.
Unless practical immortality coincides with fundamental and extreme shifts in our society and economy, it'd be a catastrophe.