[manifold]

It's important not to overlook the role that disease still plays in old age. Engineering a standard lifetime of 200 years without improving the current morbidity rates would be an enormous drain on society.

[thras]

Yes. I don't think anybody would wish for another 130 years tacked on to their lifespan if it were all spent in a nursing home.

But, due to the nature of the problem, that sort of thing is unlikely. Fixing old age will necessarily involve making us healthier.