All of this has been done in the past. Having to be at the airport 2 hours in advance is solely due to the security theater we all participate in. Back in the

All of this has been done in the past. Having to be at the airport 2 hours in advance is solely due to the security theater we all participate in. Back in the 90s you could indeed show up 15-30mins before takeoff. Magic pods aren't going to solve it: you'll just sit for two hours in your pod instead. Trains in Britain used to detach some cars while driving at high speed, so-called "slip coaches". Turns out it is needlessly complicated while providing negligible real benefit. High-speed rail already operated in a hub-and-spoke structure, and one 5-minute stop every hour 100 miles or so is barely noticeable.