The good news is most of the changes you want are political rather than technological. There's no law of physics or even of economics that prevents us from havi

The good news is most of the changes you want are political rather than technological. There's no law of physics or even of economics that prevents us from having airports where, once you have a ticket, you hand your luggage to a machine then stroll over to your departure gate and board the plane as soon as it is ready. The bad news is that political changes need the cooperation of large groups of your fellow citizens.