For instance, a common diabetes drug, metformin, can modestly slow ageing in mice. And simply changing one gene involved in cell metabolism in a roundworm can lead it to live many times longer than its parents; while it is unlikely the same changes would help more complex organisms... http://www.bbc.com/future/story/201...iving-to-200-years-old?ocid=global_future_rss
No to 120. We can't figure out what to do about all of our social and economic problems with people living into their eighties, and I don't see anything on the horizon that makes me believe we're remotely close to solving our current problems.
So then, in your ideal world, the average lifespan should decline? You know, to help solve all our problems?
your drawing on finite resources at your young age NOW, so what's keeping you from "initiating a departure from the material world", post haste for thegood of rest of us of course