Philosopher Daniel C. Dennett noted that with the idea of a massively parallel architecture, which would be capable of exploring a different part of the space of possible computations, Hillis opened up a vast area:

What the British mathematician Alan Turing did, with the concept of the Turing machine, was to provide a succinct definition of the entire space of all possible computations. The machine developed by John von Neumann was a mechanical realization of Turing's idea. A von Neumann machine is the computer on your desk — the standard serial computer. In principle, the von Neumann machine — which is, for all practical purposes, a universal Turing machine — can compute any computable function; but if you don't have a billion years to wait around, you can't actually explore interesting parts of that space. The actual space explorable by any one architecture is quite limited. It sends this vanishingly thin thread out into this huge multidimensional space. To explore other parts of that space, you have got to invent other kinds of architecture. Massive parallel architectures are everybody's first, second, and third choices.

What Danny did was to create if not the first then one of the first really practical, really massive, parallel computers. It precipitated a gold rush. We had a new exploration vehicle, which was looking at portions of design space that had never been looked at before. Danny was very good at selling that idea to people in different scientific fields and demonstrating, with some of the early applications, just how powerful and exciting this vehicle was.

Two years ago this month, Hillis instigated an interesting Edge Reality Club conversation cross-referenced with a discussion on the Encyclopedia Britannica website on Nicholas Carr's Atlantic Essay "Is Google Making Us Stupid" (now expanded into Carr's book The Shallows). Hillis wrote:

We evolved in a world where our survival depended on an intimate knowledge of our surroundings. This is still true, but our surroundings have grown. We are now trying to comprehend the global village with minds that were designed to handle a patch of savanna and a close circle of friends. Our problem is not so much that we are stupider, but rather that the world is demanding that we become smarter. Forced to be broad, we sacrifice depth. We skim, we summarize, we skip the fine print and, all too often, we miss the fine point. We know we are drowning, but we do what we can to stay afloat.

As an optimist, I assume that we will eventually invent our way out of our peril, perhaps by building new technologies that make us smarter, or by building new societies that better fit our limitations. In the meantime, we will have to struggle. Herman Melville, as might be expected, put it better: "well enough they know they are in peril; well enough they know the causes of that peril; nevertheless, the sea is the sea, and these drowning men do drown."

We create tools and then we mold ourselves in their image. With The Hillis Knowledge Web he has proposed something new, something different. I can make a case that his "Aristotle" (The Knowledge Web) essay is the kind of seminal document, such as Turing's Computing Machinery and Intelligence, and MuCulloch et al's What the Frog's Eye Tells the Frog's Brain that appears a few times in a century. But now, with the Google announcement, we will all find in Internet time, how his ideas play out in the real world.

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From The Edge.Org archive