The Boeing 747 truly is a triumph of knowledge, only respecting knowledge could create that. As with all use knowledge the better and more efficient will come, the gigantic double Decker Airbus, but the principles, the point X's for those who know, are the same the use will just be a better product. Its time might be up, but the 747 revolutionized transportation.
It is knowledge, none of this fancy fancy stuff from World Bank, IMF, UN, believe me, why do you think they are fighting so hard against knowledge and talking of monetary, fiscal all these other policies that are useless without knowledge. One wonders why?