“A working model may be requested in the case of applications for patent for alleged perpetual motion devices.”
— U.S. Patent and Trade Office Web Site
Western society values independence and self-reliance. One of my favorite activities is to hike in the back country until I’m lost, and then find my way out with maps and a compass.1 Using a global positioning satellite (GPS) unit, cellular telephone, or helicopter are not on my list of options, efficient though they may be.
1. My wife inserted a note in a draft version of this manuscript to the effect that I “no longer do such silly things since getting ...