The parenthetical (from) tag on this post should be "Phil Greenspun" rather than "harvard.edu". Phil G is a talented software guy, and has put the time/money i

The parenthetical (from) tag on this post should be "Phil Greenspun" rather than "harvard.edu". Phil G is a talented software guy, and has put the time/money in to becoming a very accomplished pilot. He writes very well on those subjects. ...