Earlier quoted context omitted.
"If that means fewer flights available and higher prices in the future, that's a net positive for the planet as people will have to be more selective about travel." I've lurked near daily on HN for over five years - and this is the unfortunate comment I finally feel the need to make an account to reply to. I presume you're living in the U.S. based on your comment. I too live in the U.S., with severely debilitating he…
The problem is not availability of cheap airline tickets, it's availability of healthcare. The point (the transportation/energy use issue cannot be tackled without also working on the social problems) is an important one though.
If we're talking about a rare disease, there is no solution other than moving to one of the few specialist centers in the world if air travel goes away.