I now realize my comment may be read as midly abrasive and perhaps condescending. Please receive my apologies, it was not my intent. I won't debate your argume

I now realize my comment may be read as midly abrasive and perhaps condescending. Please receive my apologies, it was not my intent. I won't debate your arguments because frankly I don't know, and your guess is as good as mine (you do make sense, I personally follow you intuitively; I just happen to see some interpretations of demographics that bit me in the past, in particular this topic of life expectancy). For instance on the topic of Senators, if you just look at the pyramid of ages for the US, there's this big huge boomer zone — look no further to explain their overpresence in every domain where their current age, i.e. old, is an asset. (However, that there are two or ten times more seniors today than in 1800, when less than 1% of 1% of the population is a Senator-grade politician, is insignificant numerically.) Let's ask ourselves the question, are all experts in all professions generally older today than before? Are Senators evolving like other comparable 'sectors' of activity? (academia, consulting maybe, etc) And I think that yes, as there are a lot of boomers, and they're here to stay to the end of their maximum lifespan because they're so many and Senator is a rare job.