Dr. Standish, hello! Now you are corroborating a way, Stephen Wolfram's contention, several years ago, that we need never perform interstellar travel, or SETI searches to locate alien intelligences, simply compute-up their society, physiology, technology, and wham! We have all the information our cholesterol-soaked heart's desire. You also, are re-creating the plot for Arthur C. Clarke, and Stephen Baxter's, The Light of Other Days, wherein, the Google Search Engine is hooked up with a wormhole, and all information of the past becomes known, including the religious traditions. Also in the book, was the notion of resurrection, in the flesh, courtesy of the Google-Wormhole. So, if your observation of Professor Deutsch and virtual reality is doable, you have just solved the issue of death as part of the human condition. Not to bad for weekend work! Now if you can only do something for taxes?
Mitch -----Original Message----- From: Russell Standish <[email protected]> To: everything-list <[email protected]> Sent: Sat, Jan 18, 2014 7:53 pm Subject: Re: Tegmark's New Book On Wed, Jan 15, 2014 at 07:54:08PM -0500, Stephen Paul King wrote: > Dear spudboy100, > > As far as I know, no. It isn't possible to shift from one "universe" into > another and back. The universes are orthogonal to each other; they are not > stacked like sheets of paper on top of each other. The universes for > systems that involve multiple particles and not just single isolated > particles are scary hard to compute and thus track under the > transformation. Moving from one to another is a non-commutative > transformation at best. If we where to figure out how to shift (ala > Philadelphia > Experiment <http://en.wikipedia.org/wiki/Philadelphia_Experiment>) into > another, the phases and positions of objects is more likely to get > scrambled then not, making a big mess. > I disagree, quite vehemently. All it takes to visit another universe is to have near perfect virtual reality technology, such as David Deutsch discusses in his books. (Obviously current VR technology is not up to snuff, but there is no in principle reason why the technology will never be invented, given sufficient understanding of neurophysiology). One can, for example, go back and visit and event in ancient rome. If your VR system encodes all knowledge we have about that event, we have travelled back to an event in our past. If not, then we have travelled to an alternate universe (an elternate historical past). Clearly, our present is not necessarily the experienced future of that past event, as indeterminism kicks in. This means that the Grandfather paradox is resolved, and you'll never get rich playing the lottery by time travel. A background assumption to all of this is that reality is some kind of multiverse, of course :). Cheers -- ---------------------------------------------------------------------------- Prof Russell Standish Phone 0425 253119 (mobile) Principal, High Performance Coders Visiting Professor of Mathematics [email protected] University of New South Wales http://www.hpcoders.com.au ---------------------------------------------------------------------------- -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
