AW is right that it will take decades and trillions of dollars, but the rewards are large enough to drive such investment. RR is acknowledging the long-term nat

AW is right that it will take decades and trillions of dollars, but the rewards are large enough to drive such investment. RR is acknowledging the long-term nature of the market and pivoting to shorter-term profit, probably correctly. You will not fly in LH2 aircraft, but your grandchildren will.