Évariste is one of the rare specimens of artist-cum-scientists. Among his kind stand others like Pierre Schaeffer, a Polytechnique graduate (an engineer but also the father of musique concrète) and the eccentric Boby Lapointe (graduate of the École centrale and inventor of the Bibi-binaire system, patented in 1968). Évariste's songwriting, joyful and full of energy (albeit extremely critical), shrouds an original tragedy: born in 1943 among résistants, Joël Sternheimer (aka Évariste) grew up without a father, lost to Auschwitz. Although he makes little reference to Jewish culture in his music, his origins leave their mark: in 1974, he sings a Hebrew song on television. In 1966, the young Joël sports Princeton's colourful paraphernalia - that's because he's freshly returning from the US, where he was sent to pursue his research on "particle mass and the interpretation of observed regularities, such as the effects of a wave" (will understand who may). When he gets there the country's in the midst of the Vietnam War. With McNamara keen to find an alternative to the nuclear weapon and calling upon the country's biggest brains to undertake the task, there's a "fund shift" within the university - a diplomatic way to give notice to whoever may not be disposed to follow the government's scheme. Joël, who's under the supervision of a rebellious physician, is dismissed. He regardless keeps following the prestigious seminaries of the Institute for Advanced Study, chaired by Oppenheimer, inventor of the atomic bomb. Likely inspired by the hippie movement and music, Joël buys a guitar and starts playing in Washington Square - after all, Bob Dylan himself started there. He blithely skips Oppenheimer and receives a warm (though surprised) welcome from a crowd thoroughly unfamiliar with French. When the ageing physicist questions him about his decreasing attendance, Joël explains how drawn he is to music, and how he thinks it could help him in self-financing his research. Évariste recalls seeing the sickened man, his face torn by remorse, lighten up to his words and say: "What's keeping you - go for it! If I was still young that's exactly what I'd do." The student takes these words as a testimony from his professor - and it's enough to convince him.