That's interesting. I learned to fly 1992-2002, but never completed the certification. I got in 50 hours of solo, flew a lot of different planes and wrote a dozen or so articles for regional pilot newspapers. Some of my work is in the Archives at Neil Glazer's www.studentpilot.com.After contrasting aviation with numismatics, I wrote an essay on"Virtues of Aviation Culture." The two worldviews have very little in common.