A Pencil

Neil Gershenfeld a sublinhar a importância do desenho com forma primária para esquematizar ideias, perceber objectos, iniciar processos de materialização de ideias que podem ser concluídos com as maquinações mais avançadas:

The most affordable, and in many ways versatile, engineering design tool costs around ten cents: a pencil. This often underrated instrument has a number of desirable features. Its user interface is easy to understand, the response to commands is immediate, it's portable, and it creates high-resolution images.

Neil Gershenfeld (2005). FAB: The Coming Revolution on Your Desktop–from Personal Computers to Personal Fabrication. Nova Iorque: Basic Books.