20 In considering future living standards, doubling every 35 years represents a way to gauge whether future generations will enjoy an improvement comparable to that enjoyed by previous generations.
It's impossible to say whether future Americans will have better living standards.
mnli hypothesis: It's impossible to say whether future Americans will have better living standards. premise: 20 In considering future living standards, doubling every 35 years represents a way to gauge whether future generations will enjoy an improvement comparable to that enjoyed by previous generations.