No one knows what it would do to a creative brain to think creatively continously. Perhaps the brain, like the heart, must devote most of its time to rest between beats. But I doubt that is true. I hope it is not, because [interactive computers] can give us our first look at unfettered thought. It can allow a decision maker to do almost nothing but decision making, instead of processing data to get into a position to make the decision.

Nelson's life is so full of unfinished projects that it might fairly be said to be built from them, much as lace is built from holes or Philip Johnson's glass house from windows. He has written an unfinished autobiography and produced an unfinished film. His houseboat in the San Francisco Bay is full of incomplete notes and unsigned letters. He founded a video-editing business, but has not yet seen it through to profitability. He has been at work on an overarching philosophy of everything called General Schematics, but the text remains in thousands of pieces, scattered on sheets of paper, file cards, and sticky notes.