Keep an eye on Providence. As Boston gets hotter and hotter (read more expensive), there's likely to be spillover to Providence. Providence is a truly cool little city in the BOS metro, and costing a small fraction of the few equally cool places in BOS proper.
It's very generous to give the current life expectancy stats about a 50% chance of being valid by the time you reach the age to die. If the historical growth rate in life expectancy continues -- or at minimum doesn't go to zero -- there's a 0% chance. Moreover as we witness regularly on HN there are many reasons to believe that the growth rate in longevity will accelerate.
It's surprising to see this announcement in the wake of the Alphabet restructuring. Because of privacy concerns, I suspect they'd sell many more of these under the Nest brand, than they will under the Google brand.
Providence, RI puts you on I-95/Amtrak/Acela/MBTA an hour from Boston and 2.5 hours from New York. While not cheap, it's much cheaper than either of those cities. The art, music and food scenes are awesome. There are a lot of innovators and entrepreneurs.