It is 5 P.M. in Santa Clara, California. Elodie Rebesque, a senior at Los Altos High School, is rushing out of class. She has a medical appointment of sorts. A few blocks away, she pushes open the door of BioCurious, a community lab whose mission is to create a space for amateurs, inventors, entrepreneurs and anyone else who wants to learn and experiment with biology in a friendly, educational environment. Eric Espinosa, Elodie’s mentor, quickly assesses the results of her last experiment to identify next steps.