" Well, that was a huge step. We had an instruction set. We could move data around. We could do conditionals. We could do most of the things a simple chip can do. We had the visual cortex for our display. The auditory cortex for our speakers. The motor cortex for our input. On top of that, we could write any damn software we wanted. "

― Ramez Naam , Nexus (Nexus, #1)