Travel will also likely fundamentally change. I suspect it will be another few years before the restrictions settle and find their level, and probably the same

Travel will also likely fundamentally change. I suspect it will be another few years before the restrictions settle and find their level, and probably the same again before people start to relax and want to travel internationally to the same degree in the same numbers. By which time we will have structural changes in the travel and airlines industries. Sad. I preferred the old world :-(