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Virtual worlds populated by avatars of real people interacting with each other, bots, agents, and exotic life forms: is this the future face of cyberspace?… read more
The 5th Annual Edge Question reflects the spirit of the Edge motto: “To arrive at the edge of the world’s knowledge, seek out the most complex and sophisticated minds, put them in a room together, and have them ask each other the questions they are asking themselves.” Richard Dawkins asks: how different could it all have been?… read more
What does computation mean? Daniel Dennett discusses information architecture beyond the mechanized causation in computers and frames the question in terms of the organization of matter itself. What do models of computation tell us about the material world?… read more
Daniel Dennett on knowledge sharing and the fate of the planet, in which he contrasts individuals and their brains with the trillions of neurons that compose them. The planet has grown its own nervous system: us.… read more
The 5th Annual Edge Question reflects the spirit of the Edge motto: “To arrive at the edge of the world’s knowledge, seek out the most complex and sophisticated minds, put them in a room together, and have them ask each other the questions they are asking themselves.” Daniel Dennett asks: how does the brain code semantic information?… read more
The 5th Annual Edge Question reflects the spirit of the Edge motto: “To arrive at the edge of the world’s knowledge, seek out the most complex and sophisticated minds, put them in a room together, and have them ask each other the questions they are asking themselves.” Keith Devlin’s question is so fundamental that it is arguably not a scientific question at all: It’s the big how and why question of existence itself.… read more
Is the Singularity a spiritual or a technological belief system? Perhaps it is the melding of both, says science fiction author Cory Doctorow in this dialogue with Ray Kurzweil. “After all, this is a system of belief that dictates a means by which we can care for our bodies virtuously and live long enough to transcend them. It’s no wonder that the Singularity has come to occupy so much of the science fiction narrative in these years. Science or spirituality, you could hardly ask for a subject better tailored to technological speculation and drama.”… read more
What would it be like to live forever? Writer Richard Dooling explores this question in this fictional piece from Esquire.… read more
Dr. Richard Smalley has voiced criticisms of Dr. Eric Drexler’s concept of molecular assemblers, which could be used to implement self-replicating nanobots. Smalley, who discovered “fullerenes” (aka “buckyballs”), is Chairman of the Board of Carbon Nanotechnologies, Inc. and former director of Rice University’s Center for Nanoscale Science and Technology. Drexler, who coined the term “nanotechnology” and is Chairman of the Board of Foresight Institute, responds to these criticisms.… read more
What would it take to achieve successful cryonics reanimation of a fully functioning human brain, with memories intact? A conversation at the recent Alcor Conference on Extreme Life Extension between Ray Kurzweil and Eric Drexler sparked an email discussion of this question. They agreed that despite the challenges, the brain’s functions and memories can be represented surprisingly compactly, suggesting that successful reanimation of the brain may be achievable.… read more
In this third in a series of letters addressing molecular assemblers, Eric Drexler responds to Prof. Richard Smalley’s response to Drexler’s original open letter. Countering Smalley’s argument that solution-phase chemistry is required, Drexler explains that nanofactories are instead based on mechanosynthesis — “machine-phase” chemistry — and “need no impossible fingers to control the motion of individual atoms within reactants.”… read more
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The future generations of nanotechnology will rely on being able to effectively arrange atoms. Molecular manufacturing, and the use of molecular assemblers to hold and position molecules, will be key to the future, controlling how molecules react and allowing scientists to build complex structures with atomically precise control. In this essay, Dr. Drexler discusses the benefits and challenges of future molecular manufacturing.… read more