The amazing observation in your example, for me, is that it&#x27;s one of the few things you can get cheaply, fast, <i>and</i> reliably. The holy trifecta of impossible requirements.<p>Some 60-70 years ago, you could not get it done for any sum of money. Maybe the military could do it, on a good day. A few years later, it&#x27;s not just possible, but cheap.