Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror
×

Comment Re:Enforce (Score 1) 122

I suspect the restriction is impossible to enforce, because it's almost certainly the case that the facial recognition isn't performed on the device itself. So it's a bit like saying you can't use the things for pornography; you'd have to know somehow that the user intends to pleasure himself later by looking at pictures of ladies' shoes.

It's a bit too late on that score anway. Having boots on the ground is an anachronism, even if they've got high tech wearables. In 2000 Scotland Yard was able to foil the Millennium Dome diamond heist by tracking all the gang's preparations using a network of public and private security cameras. There was almost no in-person surveillance. The first time the gang was physically near the police was when they were surrounded by an armed response team inside the exhibit hall.

Here in the US, the NYPD has acquired similar, possibly even more advanced capabilities. They can for example find all the six foot-ish blond men wearing blue sweaters in a one block radius of Penn Station then run their images through facial recognition software, then follow their suspect almost anywhere in Manhattan with no chance of being detected.

In comparison to camera networks, having a cop wearing Google glasses isn't that big a deal. A lot of our legal privacy protections are based on the assumption it's too labor intensive to follow people around for frivolous purposes. An army of cops with cameras is expensive to maintain; a network of surveillance cameras is not.

Comment Re:I'm nearly certain (Score 1) 139

You really think NASA wasn't bureaucratic back in its glory days?

There were two big differences between then and now: then NASA had big-time funding and a clear mission that was stable over the course of a decade.

Bureaucracy is the optimal design pattern for an organization that has to accomplish a fixed set of objectives within a predictable set of constraints and with a stable set of resources. When bureaucracy works well, it becomes practically invisible. For example one of the greatest innovations Scotland Yard introduced to crime fighting is record keeping. That enables them to correlate crimes with evidence from past crimes in their records, including fingerprints. Before Scotland Yard introduced filing to police work, cops didn't fill out reports, and if a criminal got away with a crime the detectival slate was wiped clean for his next crime. But we usually don't think of a well-functioning police force as a record-keeping organization. When it works, you don't notice it.

Bureaucracies under stress are very noticeable. That's why the military is notoriously bureaucratic, because the bureaucracy's need to make it's work predictable and repeatable conflicts with the fluid nature of war. So "bureaucracy" in our minds is associated with malfunctioning or even corrupt organizations.

Bureaucracies are predictable. If you underfund a bureaucracy, it will inevitably put more effort into preserving itself and less into what it's supposed to do. If you ask it to accomplish something the people working in it perceive as impossible, false or contrived information will inevitably clog its record keeping system. If you demand schoolteachers raise score levels, score levels will rise whether or not children are getting better educated. If you demand cops increase the numbers of arrests, the numbers of arrests reported will rise whether or not there is an impact on crime.

So what happened to NASA's bureaucracy? Well, in the glory days, the environment was optimal for the functioning of bureaucracy. Even disasters like Apollo 1 weren't "unpredictable" from a planning standpoint. Things like that were bound to happen. The instant one did, the bureaucracy leapt into action, forming committees and tasks forces, like white blood cells rushing to the location of a wound. But once we'd landed on the Moon, things changed. Funding dropped, and the bureaucracy was asked to deal with conflicting priorities. Conflicting priorities aren't one of the things bureaucracies can handle.

You can't ask a bureaucracy to fix itself. Fixes have to come from a higher level. A company with a malfunctioning management structure needs to be addressed by the board. A malfunctioning government agency has to be addressed at the political level. It's not bureaucracy per se that brought low, it's politicians who don't want to make tough decisions about NASA priorities, nor adequately fund all the agency's objectives.

Comment Re:Solar Could be 50+% of production, but... (Score 2) 167

Wasting power we're currently throwing away anyhow seems like an odd concern. You could even store the excess energy in a really inefficient storage medium and still come out ahead -- provided that excess power was cheap enough to produce in the first place and the storage mechanism was cheap enough. It's the *financial* return that will determine behavior; the physical efficiency is only a contributing factor.

The real limiting point for percentage generated by solar will be the result of a complicated mix of factors, including technologies, economies and diseconomies of scale, local supply and demand etc. Where diminishing returns will hit zero in thirty-five years is impossible to estimate today using back-of-the-envelope calculations. Thirty-five years is a long time for a technology just hitting its stride. Consider: 35 years ago was roughly when the 8088 CPU was launched.

Comment Re:The problem with double standards. (Score 1) 292

Well, you can call it a "double standard", but that's how science works. Interpretations of data that contradict the established theory face higher burdens of proof than interpretations that support it.

It's frustrating to climate denialists and perpetual motion inventors that their ideas aren't given equal dignity with the scientific consensus, but that's because by in large they're ignorant of the effort that went into forging that consensus. It took fifty hard fought years for AGW to become the scientific consensus, and as a result it enjoys a privileged position: it gets to play the null hypothesis. To do otherwise isn't fair to the people who fought that fight for decades, and won. You can overturn the scientific consensus, but it's an uphill battle, as it should be.

Comment Re:Completely Contained? (Score 1) 475

Ebola is (according to the summary) completely contained in Nigeria and Senegal. This 2014 outbreak is all over West Africa, and according to TFA (I know, I know) the patient had just returned from Liberia, a West African country where the current outbreak has (obviously) not been contained.

Someone bringing this virus back is not so surprising. The big deal will be when we have our first case of endemic transmission -- when someone *catches* the virus here.

Comment Re:Statistical Literature (Score 1) 127

Oh, god. Mel Gibson's 1990 Hamlet was awful. It was the most asinine thing I've ever seen. Shakespeare for people who really *are* dummies. Reportedly it was director Franco Zeffirelli's attempt to make Shakespeare "less cerebral" and more accessible to the masses. What a choice to try that with! The whole point of Hamlet is that he's so damned smart the only person who can really stand in his way is him.

My point was that you've got to find an actor who can give a knowledgeable performance. Not some meat-head action star stunt cast miles out of his depth. I'd rather watch Arnold Schwarzenegger Hamlet.

I think the best film adaptation of Hamlet I've seen was Kenneth Branaugh's 1996 version, although it is long, long, long at 242 minutes (to Gibsons' 134 minutes). Olivier's 1948 Hamlet is generally highly regarded, but it's too sentimental for my taste. Haven't seen Derek Jacobi's 1980 BBC performance, but I've heard good things about it. I've seen snippets of the David Tennant Hamlet, and it looks promising, although it's hard to shake the impression that it's Dr. Who playing Hamlet.

Comment Re:No he didn't (Score 5, Insightful) 217

Exactly. Security screwed up, and then they HAD to deal with it. It's not mere security theater to have a security checkpoint. Those checkpoints are demonstrably important.

Not many of us remember, but until 1973 there was no baggage screening, no metal detectors, and no id requirements for getting on a commercial flight. The number of skyjackings had climbed rapidly since the mid-50s so that in 1972 there were 11 skyjackings of commercial flights around the world, seven in the US.

After security checkpoints were introduced in the US, there wasn't another skyjacking in the US for three years. Then an occasional one now and then, as people found loopholes. There was one passenger airliner hijacking of a flight FROM the US in all the 1980s and none in the 1990s.

My conclusion is that the security measures put in place by 1990 were highly effective. 9/11 fit the pattern of the early dribs-and-drabs hijackings, the difference is Al Qaeda made an effort to do multiple simultaneous exploitations of the vulnerability they'd found. There hasn't been a hijacking of a US flight since then, but given that the last passenger hijacking BEFORE 9/11 was in 1987, it's likely that this long dry spell is mostly if not entirely due to banning blades from carry on luggage. That's not to say that EVERY other change since then is security theater. I think reinforcing cockpit doors and changing pilot training was a reasonable response. But a lot of the enhanced pat-downs, magic scanners, no-fly list shennanigans and such are no doubt bogus.

Comment Re:net metering != solar and 10% needs new physics (Score 1) 488

Your analysis depends on two assumptions. First, that at the daily peak the amount of solar produced exceeds the total demand for electricity. That's actually quite likely to happen in the long term in certain locations -- sunny, densely developed residential neighborhoods for example -- but not in others -- in a neighborhood that has a steel mill. Maybe in the short term in a few places if the adoption of rooftop solar accelerates even more.

One of the ways to alleviate this would be to improve the distribution grid so that the excess supply could be sold further away. But lets say the day comes that the peak solar production exceeds the total electricity demand. That brings us to the second assumption.

The second assumption is that electricity is charged at a flat rate all day long. Clearly if lots of excess solar is being produced at noontime, you could easily reduce the cost you charge to electricity consumers (or pay back to electricity). We already do peak vs. off peak rates for industrial users.

This combination of grid improvements and reduced peak rates will encourage people and businesses to concentrate their power usage around noon. Maybe you'll charge our electric car at a higher rate, or maybe even charge large industrial or household batteries. The losses hardly matter, since we were throwing away the sunshine anyway. Increased noon usage will offset the tendency for electricity rates to fall during peak generation periods.

Am I saying the utilities won't lose a little money in a few isolated spots in the short term? No. What I'm saying is that we're hardly facing some kind of insurmountable singularity. Certainly not any time soon, nor in the long term if we can bring ourselves to prepare for it.

Comment Re:Hodor (Score 2) 127

Martin will kill off an important character because he has no idea how to write a character arc out of a wet paper bag.

I actually don't think that's true. I think what you're reacting to comes with the epic scale of the novel (SoI&F really is just one, long, continuous work) -- both in word count and the enormous cast of characters. It's a kind of literary clutter. If you boiled Game of Thrones down to the story of Ned Stark's rise and downfall, that would be quite a satisfying (although grim) story arc. The fact that the story goes on and on after that dissipates the emotional impact of that one story line.

At over 1.7 million words currently, Song of Ice and Fire is more than six times as long as typical English translations of the Illiad and Odyssey combined. Think about that. In the time it took you to read just the first volume of Song of Ice and Fire, you could have read BOTH the Illiad and the Odyssey. And as a bonus you'd have read BOTH the Illiad and the Odyssey.

As works go further and further north of 200,000 words, they almost inevitably lose the tight, clockwork structure you expect in a 2 hour stage play or 70,000 word novel. Stories stop feeling like they have a beginning, middle, and end and start to feel more episodic. That happens to some stories well before they hit the 200,000 word mark (American Gods, 183 KWords).

At 473 KWords, Lord of the Rings is one of the rare exceptions. From Rivendell onward it's a marvel of complex yet tightly interwoven structure. But it's a hot steaming mess of false starts up until Ford of Bruinen. Tom Bombadil anyone? I think that it could probably be edited down to 400,000 words without losing much artistically. That's still almost miraculously long for a story that feels like one story.

I have a theory about episodic megastories like Song of Ice and Fire, which is that they aren't catharsis you get from a tightly plotted play or novel. They're about transporting a reader to a world he finds interesting to visit again and again. If so that bodes ill for the the Game of Thrones TV series now that Emilia Clarke has sworn off nude scenes.

Comment Re:Statistical Literature (Score 1) 127

I don't have to read Shakespeare in Klingon, reading him in the original english is enough to put me to sleep.

Some would say this doesn't deserved to be dignified with a response, but I disagree.

The best introduction to Shakespeares plays is to see them on stage, performed by actors who know how to perform Shakespeare. Because of the shift in language, there's special skill needed for presenting Shakespeare to modern audiences. You'll be amazed at how much you understand. Until you know the play's text you'll be missing a lot too, but in the performance you won't notice that.

I'd go so far as to say it's better to see a Shakespeare play performed first before attempting to read it. Then tackle the text with its footnotes on every line.

Comment Re:Problem oriented (Score 1) 57

I tried this once. I installed a rather obscure open source app that that turned out to be quite useful to me. But it took me a couple days to get to the point where I could do anything useful with it. And I was only able to do that because I can read source code and have lots of software installation and configuration experience. And because I enjoy a puzzle.

After using the app for a month or two, I thought to myself, "There's got to be thousands and thousands of people who'd benefit from this app, but I bet 99% of the people who try it give up before they have any success. What this project needs is documentation." So I contacted the development team with an offer to write some. I explain that while I'm a developer, not a tech writer, I had written early-adopter oriented documentation for several successful commercial projects, so I knew how to get those people up to speed while the app was still something of a moving target. I also offer to maintain that documentation for at least a year.

I got back a quite haughty response from the project leader stating that he *might* let me write documentation if I became a regular code contributor to the project. Now I'd assumed that his ideas of what documentation was needed might be different from mine, but it turned out he didn't seem interested in documentation at all. Also the response had a weird, hostile vibe; it was as if I'd asked him for hundreds of hours of his time rather than offered him hundreds of mine. So I thanked him for *his* invitation and declined it.

I guess the point is that there are other, social dimensions to choosing a project to contribute to. One of them is whether the project even wants what you have to offer. Another is whether the team seems like people you'd enjoy working with. There are some projects, like the Linux kernel, which are so prestigious that you might well take a lot of crap to be a contributor. But most projects aren't like that.

If you do start our own project, watch the TED video How to Start a Movement.

Comment Re:Anarchy??? (Score 5, Insightful) 302

Somebody forwarded me an article the other day about how we should all switch to dairy from grass fed cows. Now many of the points in the piece I happen to agree with, but one of the claims was that grass-fed dairy has fewer "toxins". Whenever I see "toxins" used without further specification as to what exactly the "toxin" is, that's a signal that someone's trying to sell something expensive but useless -- which turned out to be the case. The piece was hawking stuff you were supposed to mix into your grass-fed milk, which is a good way to expose yourself to toxins given how weakly regulated supplements are.

People use ideas like "law and order" in just the same way as marketers use "toxins". It's all well and good to say you're going to stop people from breaking the law on the Internet, but what specifically are you proposing to do? Set up an anti-fraud unit? I'll cheer you on. Monitor everyone's email? That cure's worse than the disease.

But I also have to say that the word "freedom" is just as subject to misuse -- or in this case "anarchy". Now there are many things about anarchy I like. There are others I don't. I don't like having to remove malware off my wife's computer. I don't like having to be vigilant that my older relatives aren't taken in by Internet scammers. I don't like having to deal with attacks on my websites. Even government agencies poking around in your Internet data -- that could be seen as a case of the agency exploiting a specific lack of Internet regulation.

I'm all for reducing my exposure to toxins, but I'm not going to get colon irrigated. I'm for cracking down on Internet crime, but not at the expense of the government doing things that *ought* to be criminalized. I'm for freedom, but not the freedom to interfere with other people's freedom. It's really not that complicated. Find out the specifics of what people are proposing to do, even when their stated goal sounds reasonable.

Comment Re:Treasonous CIA gets more taxpayer money (Score 5, Informative) 242

Not to interfere with your nascent flame-war or anything but "self-funding" is not inconsistent with "getting more taxpayer money". First, they may get larger appropriations while at the same time running side businesses. Second, even if their appropriation were cut to zero, any money they make on the side becomes "taxpayer money."

One of the most fundamental principles of our form of government is that no executive branch agency can spend money without Congressional approval, no matter where that money came from. The reasons for this go back to the English Civil War. Charles I attempted to rule without calling Parliament, but since the Magna Carta English kings did not have the power of taxation; the House of Commons did. So Charles attempted an end-run by exploiting a fee that had been traditionally levied on coastal towns to pay for maritime protection in time of war. Charles's attempt to use "Ship Money" as a revenue source independent of Parliament was one of the key events leading to the Civil War, and was familiar history to the framers of the US Constitution.

Comment Re:Asimov (Score 1) 470

Or... he could just toss that ball bearing out the airlock.

When an aircraft intercepts another aircraft, it's closing velocity is limited to between the difference of the aircraft's top airspeed (if one is overtaking another) to the sum of their top airspeeds (if they are closing head on). That's because both aircraft "want", in the absence of energy expended, to match velocities to the air they're moving through.

There's no limit (other than relativity) on the closing velocities of spacecraft, so when one craft intercepts another in the minimum time.possible, it's closing speed can be, in fact likely would be on the order of tens of km/s, an order of magnitude faster the autocannon rounds fired by modern fighter jets. If an intercepting spacecraft wants to have a classic sci-fi space dogfight, it has to expend considerable time and energy not only matching position with the target spacecraft, but matching velocity as well.

I use this this conflict between matching position in the minimum time and matching velocities in my own stories, although from what I can see that's not a common practice.

Slashdot Top Deals

"Experience has proved that some people indeed know everything." -- Russell Baker

Working...