... the notion of creating downloadable chemistry, with the ultimate aim of allowing people to "print" their own pharmaceuticals at home. Cronin's latest TED talk asked the question: "Could we make a really cool universal chemistry set? Can we 'app' chemistry?" "Basically," he tells me, in his office at the university, with half a grin, "what Apple did for music, I'd like to do for the discovery and distribution of prescription drugs."