I mean, if we really, really tried.
The oldest known human, Jeanne Calment, died in 1997 at the age of 122. We weren’t trying especially hard to extend her lifespan. Heck, she wasn’t even trying that hard herself. Ms. Calment smoked for nearly a hundred of her years.
I’m thinking the ability to extend a lifespan is affected by personal motivation and also how many other people are trying to keep you alive. What if we had a person who was supremely dedicated to staying alive as long as possible.
Augment this with a large chunk of humanity who fanatically want her alive, no matter what. I’m thinking someone like Queen Elizabeth II, currently aged 87 years.
Suppose all the people in the Commonwealth of which she is the monarch shared this common goal (think North Korea, but with lots more people, technology and cash).
Yes, I realize many people do not care if she lives or dies. But in this hypothetical, they ALL care, down to a man. They are willing to sacrifice anything, willing to give any amount of time and money, even donate their own vital organs without hesitation if it helps in any way.
They’re not pussying around. So ethics and morality may bend, but the ultimate goal does not. For the sake of argument, assume the person they wish to remain alive is similar to Jeanne Calment in terms of natural constitution.
So, what’s the real limit? Can we get someone beyond 200 years?