I know Ray Kurzweil talks about about escape velocity. He says that currently, for every year that goes by, we get an extra 3 months due to advances in bioscience, genetics etc. From this, he postulates that the pace is speeding up, so we will start to get 4 months extra, then 5 months and so on until we reach 1 year extra for every year that goes by.
Is there any evidence for this increase in longevity, rising in an exponential manner? By evidence, I mean were we getting like 2 months extra for each year that goes by, a few years ago and now that has increased to 3?
Thanks,
Jon