If you were wondering why Mac Tonnies’ latest Loving The Alien column is a little late, here’s the answer — it turns out he’s been lurking in Second Life. What might the fluid nature of identity in the metaverse mean for our posthuman successors? Continue reading Navigating the Metaverse
Tag Archives: virtual-reality
Virtual reality and PTSD
One of the little-recognized horrors from the Vietnam War was the amount of soldiers coming back from duty, only to be unable to reintegrate properly back into society, often leading to drug use and homelessness (at least, this is the stereotype I’ve grown up with – it may or may not be true). As a child, there were always rumors of someone-or-other’s father or uncle or who was a vet and would jump at loud noises and always checked their surroundings for ambushes. Of course, we also believed that the woods nearby was a secret testing ground for mutant animals, but hey – we were kids.
Now, in a bid to prevent this from happening to returning Iraq veterans, the US Department of Defense is attempting to treat Post-traumatic stress disorder (PTSD) with virtual reality as one of the main components. The treatment is called “prolonged-exposure therapy,” meant to help people deal with traumatic memories by exposing soldiers to an environment similar to what they experienced in Iraq, but without people actually trying to kill them. The details in the article explain it better than I can. It’s not the first time this has been tried, but computing power is better now, and results seem promising.
(photo via entro_py)
Rudy Rucker disassembles the Singularity
If I could choose one science fiction author in whose head-space I could spend a lengthy holiday (equipped with copious note-taking equipment and a barrel of synaptic cognition enhancers, naturally), Rudy Rucker would be my first choice by a country mile. Despite having a justified reputation as a quirky and colourful writer, he’s a ferociously smart guy. [image by JonDissed]
Here he is debunking the Singularity – or at least the “even better than the real thing” Singularity that some people advocate – by explaining that no Virtual Reality will ever be able to simulate Real Reality accurately, because Real Reality is already running on an incredibly complex and rich computational substrate:
“VR isn’t ever going to replace RR (real reality). We know that our present-day videogames and digital movies don’t fully match the richness of the real world. What’s not so well known is that computer science provides strong evidence that no feasible VR can ever match nature. This is because there are no shortcuts for nature’s computations. Due to a property of the natural world that I call the “principle of natural unpredictability,” fully simulating a bunch of particles for a certain period of time requires a system using about the same number of particles for about the same length of time. Naturally occurring systems don’t allow for drastic shortcuts.”
Rudy Rucker – substantial proof (if proof were needed) that science and hippiedom are two sides of the same coin. There’s masses of free fiction and non-fiction on his website, by the way.
Roll Your Own Augmented Reality
If you’ve ever read William Gibson’s novel “Virtual Light” you know what augmented reality is. (If you haven’t read it, you should stop looking at this and go buy it right now.) Layering virtual objects on top of the real world is the name of the game, and now you can play it at home with the help of ARTag.net. Try not to be discouraged by the Bob the Builder aesthetic. [mefi]
Throwing Off The Shackles of Reality
When you think about it, Drew Harry’s got a point. Developing a virtual world that slavishly apes the real is kind of stupid. His meeting spaces arrange people based on their allegiances, representing a person’s expressed opinions by aligning them physically in a wide open space. I don’t know if that’s what I’d choose to emphasize, but giving up the virtual Aeron chair makes sense. [kurzweil]