Every day more than 8 million people travel in planes, taking around 50,000 flights. For an activity that's so commonplace, flying engenders a lot of fear and superstition.
Events such as this year's cluster of conspicuous plane crashes and disappearances add to the impression that flying is a risky business.
But, as Superman said to Lois Lane: "Statistically speaking, it's still the safest way to travel."
Part of the problem is that the process of flight is mysterious to the point of miraculous. Every time I fly I marvel at that instant when a 379,000kg piece of machinery goes from being firmly earthbound to being 1cm above it.
And there is no doubt that the act of flying is fraught with risks and dangers.