It is always amusing to read speculations by someone whose entire knowledge of life science is limited to what he reads in heavily hyped mainstream media articles.
We are a *long* way from many of the things he is looking forward to—if they even become possible at some time.
And his pipe dream of immortality—I can see so many problems with that, both biological and societal, that I think it is as feasible as the utopia on earth that socialists are always trying to impose with their unworkable redistributionist schemes.
A tremendous extension in lifespan may be possible. There are many theories, at least one I read said that aging is a “mistake of the intellect”, that the only reason we can’t live for hundreds of years as related in the Bible is that we have forgotten how to do so. One oddsmaker said that immortality would never be achieved because the law of averages says that if you removed all natural causes of death the longest anyone could avoid accidental death would be around 600 years with the average lifespan being around 300. It seems reasonable to believe that plans for this are already laid.
Factors other than biological ones may be the real limiting factor, I don’t know just how long a person could keep on WANTING to live another year. A lot of the young people I see already act as if they are tired of living. Imagine the generation gap between someone 300 years old and one who is 30. At my current age of 69 a person would be considered a snotty nose brat by someone who is 300. On the other hand I find that I myself find life in many ways more interesting than I often did at younger ages. I appreciate little things more. A good cup of coffee after a good nights sleep is amazingly enjoyable now. Maybe life for me would be more enjoyable and interesting at 169 than it is at 69.
I do feel fairly certain of one thing. If a great extension of lifespan becomes possible it will be made available only to a very tiny percentage of people, the rest will be expected to die as soon as possible, encouraged and assisted in doing so. I don’t think we will reach the “Soylent Green” level of population, I expect the population to be drastically reduced one way or another.