Friday, March 24, 2006
Graphene, quasiparticles, anyons and quantum braids
Yesterday I read an article in Scientific American on topological quantum computing using "braids" to perform error-resistant qubit processing. It's only theoretical, for it to work one needs a good source of anyons. The Sci Am article was written months ago of course. The same issue included a book review pointing in which a physicist saw no challenges to the Standard Model of physics since there are no meaningful places where both quantum and relativistic effects are simultaneously important.
Hmm. Graphene and anyons. - 49 googlits today. Add topological, get 31 hits. Add braid and ... Google stops working. That's funny!
Update: Google finally returned! There were 3 hits when I added braid, including this conference. By the way, most of the physicists mentioned in the SciAm article on using topological methods (braids) to enable error-resistant quantum computing work for Microsofts Project Q. There are surprisingly few googlits on Project Q, apparently it came up during a site visit for one blogger. It's nice to know Microsoft is putting its monopoly rents to interesting uses.
Tuesday, March 21, 2006
Dana Reeve: never smoked, died of lung cancer
She was only 44 when she died of lung cancer.
It is worth noting, I think, that she never smoked. As fewer people smoke, what lung cancer there is falls ever more often upon non-smokers. I need to get up to date on what the risk factors are now thought to be. (Second-hand smoke? Radium exposure? ?)
Life seem absurd? Maybe it is.
This is by far the most commonly held answer to the Fermi Paradox, even though the faithful don't usually think about their beliefs that way. Indeed, it's one of the more interesting arguments for the existence of God. Or rather, of a Designer.
A Designer of the physical universe? Or of a Simulation? And is there a difference? Brin returns to the theme, albeit without mention of my favorite paradox:
Contrary Brin: Design? Accident? Or Simulation?Any fan of the genre knows from the start how Brin's story will turn out, so it's mostly interesting for the digressions along the way. If one were looking for evidence of a simulation, I'd suggest looking for hacks and shortcuts. Computation is never free; any deity running our simulation would be doing something recursive, like reusing an intermediate output as a part of more than one result. One might be able to create an experiment that would stress the system, and expose the hacks. Something using a quantum computer ....
* Leonard Susskind's new book, The Cosmic Landscape pits intelligent design against string theory and the megaverse. Surprisingly, Autodesk founder John Walker sides with intelligent design, but not by a deity -- by post-Singularity intelligences creating a reality simulation: "What would we expect to see if we inhabited a simulation?" Yes, I have discussed this in fact & fiction, many times. But the “symptoms” delineated by Susskind are definitely the kind plumbed by theoretical physicists who have a more extensive union card than I do! http://www.fourmilab.ch/fourmilog/archives/2006-03/000664.html
To see this scenario played out in one of my short stories, go to: http://www.davidbrin.com/stonesofsignificance1.html
Two occupations: Iraq and the Falklands
The Falklands: A lesson for America in Iraq - Editorials & Commentary - William Pfaff - International Herald Tribune:
... The third obstacle to the intervention's having a positive political effect in the region is that (for incomprehensible reasons) the model of conduct the administration has imposed on the U.S. Army resembles that of Argentina's military dictatorship rather than that of the British Army that liberated the Falklands.
The Bush administration practice of torture recalls that of the Latin American military dictatorships. So does its flair for totalitarian logic. Few understand why American forces now practice torture, sometimes torture to death, and systematic abuse of prisoners and 'detainees.'
This is conduct for which the Western allies hanged Gestapo and SS officers and Japanese prison camp commanders in 1945. Do not the Bush people, and U.S. Army commanders, know even that much history?
A totalitarian logic also exists, just revealed by the former deputy White House counsel Timothy Flanigan (who has been nominated by the Bush administration to become the United States' deputy attorney general).
Asked by two senior Republican senators, John Warner and John McCain, to describe the standards governing U.S. prisoner treatment, he replied that there are no standards.
The indirect meaning of Flanigan's statement that there are no standards is that nothing is forbidden. This seems a deliberate choice by the Bush administration.
This is why the United States is not a force for justice and order in the Middle East. It has become the opposite, a creator of disorder and injustice. Does the American public understand this?
William Pfaff
I forget now why he was dropped from my news page. Maybe he was on sabbatical, or behind a paywall. Anyway, you can find his articles in the International Herald Tribune now. They're good reading. I'll put the search link back on my news page.
Canadians are made for suffering: Rogers wireless
It was like a brief trip to hell. Their was no option for keypad entry, and it didn't like my diction. I had to speak a 16 digit number in such a way that it got every digit. This is a trivial task for most VR systems, but not for this one. There was no option for keypad entry and no escape from the system.
Astounding.
Even though America is in moral and economic free fall, we can at least take some minor solace from knowing that, in the US market, Rogers Wireless would be toast.
Sunday, March 19, 2006
Rogue Unit, Rogue Nation
Before and After Abu Ghraib, a U.S. Unit Abused Detainees - New York TimesMore like a rogue nation.
... The story of detainee abuse in Iraq is a familiar one. But the following account of Task Force 6-26, based on documents and interviews with more than a dozen people, offers the first detailed description of how the military's most highly trained counterterrorism unit committed serious abuses.It adds to the picture of harsh interrogation practices at American military prisons in Afghanistan and Guantánamo Bay, Cuba, as well as at secret Central Intelligence Agency detention centers around the world.
The new account reveals the extent to which the unit members mistreated prisoners months before and after the photographs of abuse from Abu Ghraib were made public in April 2004, and it helps belie the original Pentagon assertions that abuse was confined to a small number of rogue reservists at Abu Ghraib.
Saturday, March 18, 2006
The rational right betrayed: Bush wasn't in on the con
There are small government rationalists in the historic Republican camp. They play a key role in democracy; they are the respected opposition. They helped forge some of the best results of the blessed Clinton years.
They thought Bush was one of them, and that his apparent inability to add was just an act to con the proles. When the bills came due our 100% GOP government would, with immense and solemn reluctance, eliminate medicare, social security, medicaid and a vast array of Roosevelt's legacy. Now they've come to understand that Bush is a KGB agent designed to destroy America. Or maybe he's a space alien in disguise. Or maybe Bush is a mildly demented con artist and the GOP is corrupt. Whatever the truth, their horror is genuine.
They thought they were conning the dimwitted, but they've discovered their own wits were dim.
Tough on them, terrible for America.
The worldmind in action: finding impact craters
It's a truism of the history of science that new instruments create a flurry of new discoveries. The new instrument in this case is not satellite imagery (old), or even Google Earth (though it's cool), it's the distributed worldmind. Lots of minds doing a vast amount of analysis.
After 9/11 I, among many others, proposed using a large collection of minds to process visual data from Afghanistan (obviously the security risks require some thought). I don't think that happened, but this story again shows us the potential of the new instrument.
Incidentally, the story of the early find and then nothing seems odd, but consider how many must have looked this way. The same idea probably occurred to tens of thousands of enthusiasts. The vast majority would look for a few hours then give up. If it takes 10,000 hours to find a crater, and the average search is one hour, then roughly 1 in 10,000 persons will make a discovery like this.
Friday, March 17, 2006
My Homeland security interview: via MoneyGram
I ran into some technical glitches (password problem) and experienced a mixture of both insecure (they use password hints!) and stupidly secure practices (they wanted my sister to know my home phone number), but it did work. They most interesting part, however, was the automated interview with "homeland security". Three of the four questions were about finding out which "John Faughnan" I was:
4. Based on your background, in what county is 'xxxxxxx'? ( TheOne question, however, wanted to know who I knew:
address listed may be partial, misspelled or contain minor numbering
variations from your actual address )
1. With which of the following people are you most closely associated? (The names were a bit odd. They sounded vaguely Arabic, but mostly they seemed computer generated. I googled on them (that should boost my watchlist ranking!) but came up with no matches at all. Odd.
Names may be listed as last-name first-name, include maiden names or contain
slight misspellings.) [I've removed names]
A... A...
G... B...
H... H...
L... F...
S... N...
It was an interesting example of how Homeland Security is implementing its watch lists, and seeking to match a name to a profile.
I do wonder if everyone gets the automated interview...
Bad Google, bad: Blogger misbehaving
First they temporarily locked down my tech blog because their brain-dead algorithms mis-identified it as a spam blog, then, the moment they "whitelisted" it, they had a major hardware outage. It took them about 16 hours to recover, and they were awfully slow to admit on status.blogger.com that they had a problem (times below are PT, outage was early evening on 3/16):
Thursday, March 16, 2006
The filer that we have been having trouble with in the last few days failed again. Those blogs that are stored on the bad filer are temporarily not available for publishing and viewing. We are working on replacing the filer and restoring access to the blogs affected.
Update (10:40 am, March 17): The filer has been restored. All affected blogs are available for publishing and reading.
Thursday, March 16, 2006
More Google/Blogger incompetence
I would not be inclined to trust my personal files to Google.
Google has locked my tech blog!
Google's bots decided my tech blog, Gordon's Tech was a splog (spam blog). Wow, that's nasty. It's locked until they review it. I'll post here what happens next. Note the threat to delete the entire blog within 10 days.
I'm going to have to reconsider my enthusiasm for Google. I think it just dropped about zero.
Your blog is locked
Blogger's spam-prevention robots have detected that your blog has characteristics of a spam blog. (What's a spam blog?) Since you're an actual person reading this, your blog is probably not a spam blog. Automated spam detection is inherently fuzzy, and we sincerely apologize for this false positive.
You won't be able to publish posts to your blog until one of our humans reviews it and verifies that it is not a spam blog. Please fill out the form below to get a review. We'll take a look at your blog and unlock it in less than a business day.
If we don't hear from you, though, we will remove your blog from Blog*Spot within 10 days.
Find out more about how Blogger is fighting spam blogs.
Update: They've unlocked it, but now when I try to publish I get "001 java.io.IOException". Enthusiasm heading for sub-zero levels.
The meaning of the decline of America
The same week that Salon made its bid for a Pulitzer Prize, they feature a review of a book predicting the decline and fall of America:
Salon.com Books | Decline and fallIt's easy to mock books about disaster and decline. After all, we who are relatively prosperous in America have, by definition, lived tolerably through several such books. On the other hand, it's hard to deny that America has "jumped the shark". Reelecting George Bush II. Delivering both the house and the senate to the 21st century GOP. The rise of theocracy. We're not in great shape now, and ahead lies the promise of far more dramatic acts of terrorism, of the post-oil world, geopolitical transitions, technological risks, climate change, the hoary ghost of Malthus (in the form of various plagues), etc, etc.
... In the days after Sept. 11, 2001, it was clear to everyone that the United States had suffered a hideous blow, but few had any idea just how bad it was. It didn't occur to most people to wonder whether the country's very core had been seriously damaged; if anything, America had never seemed so united and resolute. Almost five years later, with Bush still in the White House, a whole cavalcade of catastrophes bearing down on us and a lack of political will to address any of them, the scope of Osama bin Laden's triumph is coming sickeningly into focus. He didn't start the country on its march of folly, but he spurred America toward bombastic nationalism, military quagmire and escalating debt, all of which have made its access to the oil controlled by the seething countries of the Middle East ever more precarious. Now the United States is careening down a well-worn road faster than anyone could have imagined.
In any case, it was always very unlikely that America would remain ascendant forever. Like Spain, China (several times), England, the Netherlands, Turkey and so many other empires, we'll transition to some other role. We may have a faster rise and fall than most, but these are fast times. Centuries have become decades.
The more interesting question than the relative (and perhaps absolute) decline of America, is what it means. Will the world follow, or will human prosperity continue to grow overall? Certainly many of the challenges America faces are truly global; China's challenges are immense, for example. Will America's fall be relatively peaceful (Soviet Union style? - even better, the Netherlands) or a typically American meltdown? Will we keep some semblance of democracy, or will we re-elect some version of GWB? How should we, as individuals, adjust to the world ahead.
Those are the interesting questions. To me it's not about decline (highly probable and we're likely in the thick of it now), but about what happens to the world and how we manage the transition.
Wednesday, March 15, 2006
Amazon backup service: That was quick
The surprise today was Amazon announced their storage solution first:
S3 is not a backup service of course, it's a data service. Someone has to lease/sell the software that would do the backup work, storing the encrypted files on S3. It's not cheap though. I figure at least a $130 a year fee for a meager 50GB of backup. The economics may be wrong for use as a pure backup solution.Amazon S3 is intentionally built with a minimal feature set.
- Write, read, and delete objects containing from 1 byte to 5 gigabytes of data each. The number of objects you can store is unlimited.
- Each object is stored and retrieved via a unique, developer-assigned key.
- Authentication mechanisms are provided to ensure that data is kept secure from unauthorized access. Objects can be made private or public, and rights can be granted to specific users.
- Uses standards-based REST and SOAP interfaces designed to work with any Internet-development toolkit.
- Built to be flexible so that protocol or functional layers can easily be added. Default download protocol is HTTP. A BitTorrent (TM) protocol interface is provided to lower costs for high-scale distribution. Additional interfaces will be added in the future.
- Pay only for what you use. There is no minimum fee, and no start-up cost.
- $0.15 per GB-Month of storage used.
- $0.20 per GB of data transferred.
One wonders how S3 will survive Google's pending storage service. It would be surprising if Google were to cost more than 5 cents/GB/month.
What about the wisdom of storing one's files on an online server like Google's? Online backup is now commonly used by corporations, so it may simply be inevitable. In theory one could put sensitive files into encrypted disk images (but ANY change would likely mean a new full backup of the entire image); but I recently wrote about the limitations of that approach. Even the best of today's encryption might be no defense against a quantum computing code cracker of 2030. So encrypting an image would buy one at most a few years of protection. Maybe that's all we'll get. (Of course if the image file were subpoenaed one would be obliged to provide the key to break the encryption. Such a key might be hard to remember however ...)