Speaking of path-dependent relics, I wish someone would start a thread in a different forum on why we are still using 1950s communication tools in air traffic control -- verbal instructions conveyed by radio!
They're working on this. It's called
NextGen. Look it up. I'm sure you can also do a web search and find all sorts of materials out there on the programs successes and failures. There are also some systems and service providers that enable messaging between pilots and dispatchers and are especially useful for TPAC and TATL flights.