In today's New York Times, John Tierney discusses an argument by Nick Bostrom, director of the Future of Humanity Institute at the University of Oxford, that our existence could be nothing more than a computer simulation being run by posthumanists.
Dr. Bostrom assumes that technological advances could produce a computer with more processing power than all the brains in the world, and that advanced humans, or "posthumans," could run "ancestor simulations" of their evolutionary history by creating virtual worlds inhabited by virtual people with fully developed virtual nervous systems.
Some computer experts have projected, based on trends in processing power, that we will have such a computer by the middle of this century, but it doesn't matter for Dr. Bostrom's argument whether it takes 50 years or 5 million years. If civilization survived long enough to reach that stage, and if the posthumans were to run lots of simulations for research purposes or entertainment, then the number of virtual ancestors they created would be vastly greater than the number of real ancestors.
The article includes links to four others related to Bostrom's argument, and there's a lengthy discussion going on at the TierneyLab blog. Also, see my recent post about the philosophy of The Matrix.













Comments (32)
It's an ongoing outrage that Nick Bostrom gets any credit for precisely the argument that I published years before him.
I was the first to publish a scientific article on the likeliehood that we are indeed simulated by positron-electron entities at least a googol years from what humans think is the present, in the magazine Quantum Science Fiction (which published both fact and fiction).
Years later, Nick Bostrom got great publicity by rediscovering my argument, and claiming that he was the first to publish.
It is widely believed by Physicists, yet neither proven nor unanimous, that the universe is a quantum computer.
Richard Feynman had this in mind (and discussed it with me) when he became the great-grandfather of Quantum Computing. There were some revisions in his original proposal, but still wide agreement with his assertion that the universe computes it own next state by real-time integration.
I've thought about that since he and I were at Caltech togther 1968-73. Before I graduated, I gave Post's corollary to Feynman: "The universe is the smallest (least action) computer that can compute or simulate the future of the entire universe."
I stated then and still believe that we could be nested as a simulation inside a larger universe, which could in turn be nested as a simulation inside a larger universe.
I specifically suggested that we (me and the readers of the essay) were likely to be embedded in a simulation by a far far future electron-positron civilization (citing Freeman Dyson's physics theories of the deep future).
I was the first to put this in print, at: "Human Destiny and the End of Time" [Quantum, No.39, Winter 1991/1992, Thrust Publications, 8217 Langport Terrace, Gaithersburg, MD 20877; ISSN 0198-6686.
Professor Gregory Benford acknowledged to me that he drew on this theory in his novels of the galactic core (whole sentences in his novels, even paragraphs, in italics, were from his notes while he read my essay, many sentences and phrases of mine were used with permission for poetic and cosmological value), and then years later philosopher Nick Bostrom (director of the Future of Humanity Institute at Oxford University) redicovered what I'd published first, and did a better job than I at getting mainstream PR on it.
The germ of the idea was in science fiction even before me and Feynman. "The Matrix" and "The 13th Floor" popularized the idea
further.
You might also ask Dr. G. David Brin why Brin dropped out of a publishing project with Dr. Bostrom, or why the founders of the Transhumanist movement disavow Dr. Bostrom.
Posted by: Jonathan Vos Post | August 14, 2007 4:46 PM