Yeah, as I already explained twice why the life expectancy at birth in 1950, would not apply. That number includes a lot of premature deaths that no longer apply.

Ideally, you’d apply a conditional probability.

https://math.stackexchange.com/questions/768215/conditional-...

If you go to the Social Security site, for example, you can calculate your life expectancy.

https://www.ssa.gov/cgi-bin/longevity.cgi

For a male born on Dec 1, 1952, your current life expectancy is 84 years old.