Premise: Bertrand Piccard (born 1 March 1958) is a Swiss psychiatrist and balloonist. Along with Brian Jones, he was the first to complete a non-stop balloon flight around the globe, in a balloon named Breitling Orbiter 3. He was the initiator, chairman, and co-pilot, with André Borschberg, of Solar Impulse, the first successful round-the-world solar powered flight.
Hypothesis: Bertrand Piccard practiced surgery on the brain.