Not to mention the fact that if you're looking at a 40 year career today in aviation, I gotta say . . . get out now. Drones fly off of carriers and people ride on a no-driver train between terminals without a second thought, and the news is full of discussion about driverless cars. The technology exists today to negate our entire profession. It's but a matter of time before the world switches to single pilot and ultimately no pilot operations. The "Hay Day" of aviation is long past. If you're contemplating this career starting today be prepared for some end of career changes because the one thing that is constant in this career is a total lack of predictability.