Future for controllers
There is another technology change on the horizon that no one has mentioned. Economists and Geologists disagree only on the time line but it appears that at the current rate of usage there is only somewhere between 10 and 50 years of petroleum left in the ground that can be economically harvested. There are a number of alternatives for fixed power sources and ground transportation, ditto for the sea. Aviation, though, without something that isn't even on the horizon will go the way of the Dodo when the fuel supply dries up.
If I am wrong here I am missing something. It seems to me that the world should move immediately to alternate sources of power where ever it can so as to conserve the petroleum for the usage that has no alternative. Failing to do this I fear that many of us, not just controllers, who are not somewhere close to retirement are going to be out of a job.