Imagine what humanity could accomplish if the standard life-span was just 200 instead of 70.
We might find that we can't accomplish much, as older, more set-in-their-ways voters choke off support for innovation in favor of being supported in their old age. (We could give the United States as a partial example of a country where this is already national policy.) Note that I am not grinding axes for young people here--I am probably already more than half-way through my lifespan, and definitely a good bit older than most HN participants.
If we have the technology to live that long, the quality of life will probably be higher. There might not be a difference between a 150 year old and a 50 year old. The need for special treatment for older people may not be an issue at all.
We might find that we can't accomplish much, as older, more set-in-their-ways voters choke off support for innovation in favor of being supported in their old age. (We could give the United States as a partial example of a country where this is already national policy.) Note that I am not grinding axes for young people here--I am probably already more than half-way through my lifespan, and definitely a good bit older than most HN participants.