john hodgman did a segment for the radio show "this american life" back in 2001 which sort of centered around the question of "flight or invisibility?". one of my favourite segments from a series with almost nothing but excellent segments.

hmm. i thought you used to be able to listen to these episodes for free, but looks like they charge for them now, what a shame. now few people will get a chance to hear it. anyway, here's the link:

http://www.thislife.org/Radio_Episode.aspx?episode=178