Living long and healthy to say to 100 is different from those who dream of living forever or at least abnormally long.
I was considering the latter, myself living for years as a multigeneration family and still do. A sandwich family?
When the kids were young having a live-in grandparent gave my wife and I a level freedom we couldn't otherwise enjoy. The kids had extra and tireless support with their homework and as it happens in two and at times three languages. The kids further benefitted in their outlook and care for others and are grown up now living away, but grandma is still with us.
Looking back I would not have wanted to be without the benefits of a multi-generation family, which is also how it used to be not many generations ago and still is in some parts of the world were they still do not 'enjoy' the 'benefit' of a modern western lifestyle.
The advantages for a young family with kids and careers is balanced by the later responsibility caring for, in our case, a fortunately quite healthy 96 year old.
Now back to my contention in the original post.
Even healthy longer lives could present new challenges if extending life by decades if not centuries more.
Longevity on a personal level might be great, but it creates social problems. As generations pile up, overcrowding and overpopulation could burden already strained environmental resources on so far our only and already stretched planet. Could we live more frugally, more wisely and more simply?
Birth rate in the part of the word that can afford and spend time entertaining the idea of living forever or close enough, is already on average around 1.5 per women. It would not take many generation of people living much longer before it would be rare to meet a young person among gazillions of oldies.
Unemployment could worsen as people delay retirement or young people compete with more experienced 80-year-old career-changers. What about social justice if not everyone has the resources to access treatments to extend health and life?
It is not a simply issue or easy to forecast all that could happen good or for the worse.
Anyway I stand by my contention that I would not want to live much beyond 100 and only if still able to enjoy a rich mental and fulling life among young and old who's company I enjoy.
