Julio Martins and João Petiz are the founders of Everythink, a design company based in Portugal with an incredibly diverse portfolio of projects. From airplanes and medical equipment to guitars and robots, they design products, services and experiences that impact people's lives in a positive, easy and happy way. I sat down with them on location in Porto to talk about the connections across disciplines, the value of generalists, and why designing a guitar is so much harder than you might think.