Life Extension

Average life span has been inching up for decades, but all the conventional and natural means have probably been exhausted. It is also a little disingenuous to lump curing childhood diseases in with extending life span. Besides, the last thing the world needs is millions/billions of centenarian citizens needing extensive healthcare to maintain a barely tolerable existence. But add 25 years of productive useful healthy life at the beginning of your sixties and you effectively double the useful years of those society needs most: the professionals who spent 10-20 years acquiring the skills they needed to be at the top of their game. Like nuclear fusion, this one is almost certainly obtainable; it just requires the right focus in research. It does run counter to the religious sensibilities that are resurgent in America. But if say Japan discovers a youth pill, you can bet even the most devout Baptists will be popping them.

Here is how I would place the odds of significant progress:
10 Years 20%
20 Years 50%
50 Years 90%
100 Years 99%

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