I met Adrian Bejan at the Lions Cannes Festival in June, where I was also introduced to his Constructal law. Here's a very nicely done video of Adrian explaining his theory. [youtube https://www.youtube.com/watch?v=tgEBTPee9ZM&w=560&h=315] Here's the law in Bejan's terms: "For a finite-size system to persist in time (to live),...