[RadioAstronomer]

even today in an age in which mechanized transport is widely available, spend their entire lives within thirty miles of where they were born.

Not me. I average over 4000 miles between where I was born and where I live. (I say average, because I am always traveling LOL!) I once had 3 simultaneous apartments (with three rental cars parked at airport long term parking) in three different cities, one on each coast, I was flying so much.

[King Prout]

yeah, I fall well outside that class, myself.
otoh: most folks don't.
certainly, before the advent of steam power, most folks didn't.

[Doctor Stochastic]

I once had 3 simultaneous apartments (with three rental cars parked at airport long term parking) in three different cities, one on each coast,...

Conservative leader Stephen Harper : you're outed?

[shubi]

As long as you did not have 3 different wives, you are ok. ;-)