The prospect of a society with significantly extended lifetimes is absolutely horrifying. My opinion does not frequently align with Elon Musk, but I fully agree with him on this one. Death is necessary for human progress. People, at the large scale, are not sufficiently capable of changing their deeply held convictions when the societal circumstances around them change. We need a mechanism for obsolete ideas and minds to grow senescent and die off, or we will be forever stagnant and bound to the ideals of 250 year old people.
One reason old people are inflexible is that their brains get worse at making new neural connections. If anti-aging affects the brain too, then that will improve.
https://www.businessinsider.com/elon-musk-believes-it-is-imp...