Brilliant article. The same is very much true of distance. I'm British, and I've always thought of 100 miles as a long way because I grew up in a (relatively) tiny place. 600 miles away was the other end of my country. That was a really long way to me. Meeting an Australian colleague of my father who was happy to do a 600 mile round trip for a day out was a revelation. How far away something 'close' is very much depends on your frame of reference.