> "Agelessness might cause some social problems, but if the choice is between "everyone dying" and "needing societal innovation to avoid stagnation", it's hardly a choice at all."

Needing societal innovation does not mean you're going to get societal innovation, though.

Also, a cure for aging does not mean that nobody will die from old age. It means that the people who can afford the treatment won't die of old age. The poor will continue to die.