By definition the examples are cherry-picked. I noticed he didn't pull up old Visigoth ranges, nomadic farmers or Babylonian borders. That doesn't take away fr

By definition the examples are cherry-picked. I noticed he didn't pull up old Visigoth ranges, nomadic farmers or Babylonian borders. That doesn't take away from the insight that certain political histories still resonate today. Just as you can find examples of geologic features (like mountain ranges or rivers) influencing political divides, so too can you find examples of geologic features not influencing them. Doesn't mean the former is "misleading" or something.