Really interesting. As with a lot of futurism he doesn't go into a lot of detail on why some things are unlikely to happen anytime soon (like a dyson sphere, I can't see that being feasible in the next hundreds of hundreds of years). But he had some of the most interesting refutations of people just saying essentially that we can't survive here that great now, how will we when we live a long time. That all being said I always think its a good idea to say in articles about life extension that although cool advances in medicine and energy and food production are likely to happen within the next 50 years, it is unlikely that any sort of extreme increase in lifespan will affect anyone that is an adult right now. (Although possibly our grandkids) Without that disclaimer these types of articles often seem like wishful thinking.
Don't be so sure. With Google and Apple involved in the quest to defeat aging we could see significant progress. There have been quite a few research labs popping up around the world with the distinct focus on how to extend life by 10-15 years. There is likely not to be one major breakthrough with aging - it is instead likely to be a series of breakthroughs that result in average life expectancy that is much higher than it currently is. Remember that as a species we have only been collectively living to 80 for 50-60 years. This experience was nice but it did make us realize that 20-30 years of old age is not ideal. We want more life and we want more youth. There is no law of physics preventing this from being achieved. It is simply a matter for identifying the problems and having enough wealthy people realize that it isn't science fiction. Just wrote about this this morning.it is unlikely that any sort of extreme increase in lifespan will affect anyone that is an adult right now.