oh i'm sure state of the art has advanced since then. i have the necessary physics background, but it's not otherwise my domain: i once used xfoil to design an airfoil for an autonomous model glider as a hackerspace project back when i had free time for things like that many years ago. the glider was also loaded into x-plane to develop and test the autonomous part. so whenever various experimental aircraft projects popup, i'm likely to look into them, and then also notice the peculiar foils they use.