You can take that a step further: it’s actually 22 miles an hour, 24 hours a day. Which when you put it like that feels quite leisurely. You could do that on a

You can take that a step further: it’s actually 22 miles an hour, 24 hours a day. Which when you put it like that feels quite leisurely. You could do that on a boat. On the other hand when you think of it as spending so much of your life flying that your average speed over a whole year is 22 miles an hour…