We cannot rely on nanotech to save us at some point in the future, we need to do things now that will extend our lives with existing technologies.
I couldn't agree more. I'm a biologist, and I'm aware of the staggering complexity of the problem and of the enormous amount of advances that we still need to realise. I'm however pretty convinced that there are steps that we could take right now and that could give us some reasonable chance to prolong our maximal life span a bit. To give us time to reap the benefits of future technologies. For instance lipofuscine scavengers, AGE breakers and other enzymatic therapies that could repair at least some of the key damages from aging. There are already a few labs engaged in some aspects of this research, but by no means enough to give us serious hope of speedy solutions.
The main problem is economic and politic. We spend a lot of money and resources in research that will not result in important health benefits, at least in the short or medium term. And of course, aging is still not considered a disease or a problem per se
, so according to the laws of many countries no drugs targeted to aging per se
(as opposite to drugs for aging related diseases) can be put on the market.