You're in the plane traveling alone, your laptop's battery is empty, you don't have anything to read, there is no screen on the front seat, nobody's seating near you and you don't feel sleepy.
Perfect! You have some time for deep thinking and decision making. It's not a surprise that a lot of important decisions are made in similar situations.
Most western people are afraid to pause their busy schedule during a normal day and do nothing but thinking for some hours. That's why they're eager to find excuses and persuade themselves that they have more important things to do.
In a situation like the one I described in the plane, all excuses are lifted as there is nothing better to do.