Modern medical advances might mean people could live 200 years.
In 2009, the life expectancy is about 80 years.
Assume that, due to modern advances, life expectancy
gains
5.5
years every decade.
From 2009, in how many years would humanity achieve a life
expectancy of
130 years?
Humanity would achieve a life expectancy of
130
years in approximately
nothing
years.
(Round up to the nearest year.)