The statement I made was that Germans can visit 10 countries as easily as Texans can visit 10 states. 800 air miles from Austin or less can take one to the capitals of New Mexico, Colorado, Oklahoma, Kansas, Arkansas, Louisiana, Mississippi, Alabama, Missouri, and Florida. The same 800 air miles from Berlin would reach the capitals of the following countries: Denmark, Netherlands, Belgium, Luxembourg, France, Switzerland, Italy, Austria, Lichtenstein, Slovenia, Croatia, Serbia, Romania, Moldova, Ukraine, Belarus, Latvia, Lithuania, Poland, Sweden, Norway, and the UK. And I'm sure I'm missing several principalities in there. It's just a game we are playing to compare the scales of things, for fun.
The point is that the transportation and housing density strategies that work in Europe might be impractical in many parts of the U.S., and vice versa. Back to topic: Retiring in Europe is going to demand a different lifestyle than retiring in some parts of the U.S., which will be more like Australia than Europe. And "being well-traveled" is easier in parts of the world where so many distinct cultures shared the same relatively small end of the Eurasia continent.
Rick "who didn't expect the Spanish Inquisition" Denney