But if growth slows down, instead of doubling our standard of living every generation, Americans in the future can't expect to be twice as well off as their parents, or even a quarter [more well off than] their parents.
Tetapi jika pertumbuhan melambat, daripada melipatgandakan standar hidup setiap generasi, orang Amerika di masa depan tidak bisa berharap untuk dua kali lebih baik daripada orang tua mereka, atau bahkan seperempat lebih baik daripada orang tua mereka.