Steps closer to more universal power supplies

I’ve written before about both the desire for universal dc power and more simply universal laptop power at meeting room desks.

Today I want to report we’re getting a lot closer. A new generation of cheap “buck and boost” ICs which can handle more serious wattages with good efficiency has come to the market. This means cheap DC to DC conversion, both increasing and decreasing voltages. More and more equipment is now able to take a serious range of input voltages, and also to generate them. Being able to use any voltage is important for battery powered devices, since batteries start out with a high voltage (higher than the one they are rated for) and drop over their time to around 2/3s of that before they are viewed as depleted. (With some batteries, heavy depletion can really hurt their life. Some are more able to handle it.)

With a simple buck converter chip, at a cost of about 10-15% of the energy, you get a constant voltage out to matter what the battery is putting out. This means more reliable power and also the ability to use the full capacity of the battery, if you need it and it won’t cause too much damage. These same chips are in universal laptop supplies. Most of these supplies use special magic tips which fit the device they are powering and also tell the supply what voltage and current it needs.  read more »

More automatic valet parking and self-driving tow vehicles.

I want to enhance two other ideas I have talked about. The first was the early adoption of self-driving cars for parking. As I noted, long before we will accept these cars on the road we’ll be willing to accept automatic parking technology in specially equipped parking lots that lets us get something that’s effectively valet parking.

I also wrote about teleoperation of drive-by-wire cars for valet parking as a way to get this even earlier.

Valet parking has a lot of advantages. (I often joke, “I want to be a Valet. They get all the best parking spots” when I see a Valet Parking Only sign.) We’ve given up to 60% of our real estate to cars, a lot of that to parking. It’s not just denser, though. It can make a lot of sense at transportation hubs like airports, where people are carrying things and want to drive right up close with their car and walk right in. This is particularly valuable in my concept of the minimalist airport, where you just drive your car up to the fence at the back of the airport and walk through a security gate at the fence right onto your plane, leaving a valet to move your car somewhere, since you can’t keep it at the gate.

But valet parking breaks down if you have to move the cars very far, because the longer it takes to do this, the fewer cars you can handle per valet, and if the flow is imbalanced, you also have to get valets back quickly even if there isn’t another car that needs to come back. Valet parking works best of all when you can predict the need for your car a few minutes in advance and signal it from your cell phone. (I stayed at a hotel once with nothing but valet parking. The rooms were far enough from the door, however, that if you called from your room phone, your car was often there when you got to the lobby.)

So I’m now imagining that as cars get more and more drive-by-wire features, that a standardized data connection be created (like a trailer hitch brake connection, but even more standard) so that it’s possible to plug in a “valet unit.” This means the cars would not have any extra costs, but the parking lots would be able to plug in units to assist in the automated moving of the cars.  read more »

A way to leave USB power on during standby

Ok, I haven't had a new laptop in a while so perhaps this already happens, but I'm now carrying more devices that can charge off the USB power, including my cell phone. It's only 2.5 watts, but it's good enough for many purposes.

However, my laptops, and desktops, do not provide USB power when in standby or off. So how about a physical or soft switch to enable that? Or even a smart mode in the US that lets you list what devices you want to keep powered and which ones you don't? (This would probably keep all devices powered if any one such device is connected, unless you had individual power control for each plug.)

This would only be when on AC power of course, not on battery unless explicitly asked for as an emergency need.

To get really smart a protocol could be developed where the computer can ask the USB device if it needs power. A fully charged device that plans to sleep would say no. A device needing charge could say yes.

Of course, you only want to do this if the power supply can efficiently generate 5 volts. Some PC power supplies are not efficient at low loads and so may not be a good choice for this, and smaller power supplies should be used.

eBay should support the ReBay


There’s a lot of equipment you don’t need to have for long. And in some cases, the answer is to rent that equipment, but only a small subset of stuff is available for rental, especially at a good price.

So one alternative is what I would call a “ReBay” — buy something used, typically via eBay, and then after done with it, sell it there again. In an efficient market, this costs only the depreciation on the unit, along with shipping and transaction fees. Unlike a rental, there is little time cost other than depreciation.

For some items, like DVDs and Books and the like we see companies that cater specially to this sort of activity, like Peerflix and Bookmooch and the like. But it seems that eBay could profit well from encouraging these sorts of markets (while vendors of new equipment might fear it eats into their sales.)

Here are some things eBay could do to encourage the ReBay.

  • By default, arrange so that all listings include a licence to re-use the text and original photographs used in a listing for resale on eBay. While sellers could turn this off, most listings could now be reusable from a copyright basis.
  • Allow the option to easily re-list an item you’ve won on eBay, including starting from the original text and photos as above. If you add new text and photos, you must allow your buyer to use them as well.
  • ReBays would be marked however, and generally text would be added to the listing to indicate any special wear and tear since the prior listing. In general an anonymised history of the rebaying should be available to the buyer, as well as the feedback history of the seller’s purchase.
  • ReBayers would keep the packaging in which they got products. As such, unless they declare a problem with the packaging, they would be expected to charge true shipping (as eBay calculates) plus a very modest handling fee. No crazy inflated shipping or flat rate shipping.
  • Since some of these things go against the seller’s interests (but are in the buyer’s) it may be wise for eBay to offer reduced auction fees and paypal fees on a reBay. After all, they’re making the fees many times on such items, and the paypal money will often be paypal balance funded.
  • Generally you want people who are close, but for ReBaying you may also prefer to pass on to those outside your state to avoid having to collect sales tax.
  • Because ReBayers will be actually using their items, they will have a good idea of their condition. They should be required to rate it. No need for “as-is” or disclaimers of not knowing what if it works.

This could also be done inside something like Craigslist. Craigslist is more popular for local items (which is good because shipping cost is now very low or “free”) though it does not have auctions or other such functionality. Nor is it as efficient a market.

Forming a "scanner club"

I’ve accumulated tons of paper, and automated scanner technology keeps getting better and better. I’m thinking about creating a “Scanner club.” This club would purchase a high-end document scanner, ideally used on eBay. This would be combined with other needed tools such as a paper cutter able to remove the spines off bound documents (and even less-loved books) and possibly a dedicated computer. Then members of the club would each get a week with the scanner to do their documents, and at the end of that period, it would be re-sold on eBay, ie. a “ReBay.” The cost, divided up among members, should be modest. Alternately the scanner could be kept and time-shared among members from then on.

A number of people I have spoken to are interested, so recruiting enough members is no issue. The question is, what scanner to get? Document scanners can range from $500 for a “workgroup” scanner to anywhere from $1,500 to $10,000 for a “production” scanner. (There are also $100,000 scanning-house scanners that are beyond the budget. The $500 units are not worth sharing and are more modest in ability.

My question is, what scanner to get? As you go up in price, the main thing that changes is speed in pages per minute. That’s useful, but for private users not the most important attribute. (What may make it important is that if you need to monitor the scanning job to fix jams or re-feed. Then speed makes a big difference.)

To my mind the most important feature is how automatic the process is — can you put in a big stack of papers and come back later? This means a scanner which is very good at not jamming or double-feeding, and which handles papers of different sizes and thicknesses, and can tolerate papers that have been folded. My readings of reviews and spec sheets show many scanners that are good at detecting double feeds (the scanner grabs two sheets) as well as detecting staples, but the result is to stop and fix by hand. But what scanners require the least fixing-by-hand in the first place?

All the higher end units scan both sides in the same pass. Older ones may not do colour. Other things you get as you pay more will be:

  • Bigger input hoppers — up to around 500 sheets at a time. This seems very useful.
  • Higher daily duty cycles, for all-day scanning.
  • Staple detectors (stops scan) and ultrasonic double feed detectors (also stop scan.)
  • Better, fancier OCR (generating searchable PDFs) including OCR right in the hardware.
  • Automatic orientation detection
  • Ability to handle business cards. Stack up all those old business cards!
  • The VRS software system, a high end tool which figures out if the document needs colour, grayscale or threshold, discards blank pages or blank backs and so on.
  • In a few cases, a CD-burner so can be used without computer.
  • Buttons to label “who” a document is being scanned for (can double as classification buttons.)
  • Ability to scan larger documents. (Most high-end seem to do 11” wide which is enough for me.)

One thing I haven’t seen a lot of talk about is easy tools to classify documents, notably if you put several documents in a stack. At a minimum if would be nice if the units recognized a “divider page” which could be a piece of coloured paper or a piece of paper with a special symbol on it which means “start new document.” One could then handwrite text on this page to have it as a cover page for later classification at the computer, or if neatly printed, OCR is not out of the question. But even just a sure-fire way to divide up the documents makes sense here. Comments suggest such tools are common.

It may be that the most workable solution is to hire teen-agers or similar to operate the scanner, fix jams and feed and classify documents. At the speeds of these scanners (as much as 100 pages/minute for the higher end) it seems there will be something to do very often.

Anyway, anybody have experience with some of the major models and comments on which are best? The major vendors include Canon, Xerox Documate/Visioneer, Fujitsu, Kodak, Bell and Howell and Panasonic.

Photograph your shelves to catalog your library

A lot of people want to catalog their extensive libraries, to be able to know what they have, to find books and even to join social sites which match you with people with similar book tastes, or even trade books with folks.

There are sites and programs to help you catalog your library, such as LibraryThing. You can do fast searches by typing in subsets of book titles. The most reliable quick way is to get a bar code scanner, like the free CueCats we were all given a decade ago, and scan the ISBN or UPC code. Several of these sites also support you taking a digital photograph of the UPC or ISBN barcode, which they will decode for you, but it's not as quick or reliable as an actual barcode scanner.

So I propose something far faster -- take a picture with a modern hi-res digital camera of your whole shelf. Light it well first, to avoid flash glare, perhaps by carrying a lamp in your hand. Colour is not that important. Take the shelves in a predictable order so picture number is a shelf number.

What you need next is some OCR of above average sophistication, since it has to deal with text in all sorts of changing fonts and sizes, some fine print and switching orientations. But it also has a simpler problem than most OCR packages because it has a database of known book titles, authors, publisher names and other tag phrases. And it even would have, after some time, a database of actual images of fully identified book spines taken by other users. There may be millions of books to consider but that's actually a much smaller space than most OCR has to deal with when it must consider arbitrary human sentences.

Even so, it won't do the OCR perfectly on many books. But that doesn't matter so much for some applications such as search for a book. Because if you want to know "Where's my copy of *The Internet Jokebook*" it only has to find the book whose text looks the most like that from a small set. It doesn't have to get all the letters right by any stretch. If it finds more than one match it can quickly show you them as images and you can figure it out right away.

If you want a detailed catalog, you can also just get the system to list only the books it could not figure out, and you can use the other techniques to reliably identify it. The easiest being looking at the image on screen and typing the name, but it could also print out those images per shelf, and send you over to get the barcode. The right software could catalog your whole library in minutes.

This would also have useful commercial application in bookstores, especially used ones, in all sorts of libraries and on corporate bookshelves.

Of course, the photograph technique is actually worthwhile without the OCR. You can still peruse such photographs pretty easily, much more easily than going down to look at books in storage boxes. And, should your library be destroyed in a fire, it's a great thing to have for insurance and replacement purposes. And it's also easy to update. If you don't always re-shelve books in the same place (who does) it is quick to re-photograph every so often, and software to figure out that one book moved from A to B is a much simpler challenge since it already has an image of the spine from before.

Squicky memory erasure story with propofol

I have written a few times before about versed, the memory drug and the ethical and metaphysical questions that surround it. I was pointed today to a story from Time about propofol, which like the Men in Black neuralizer pen, can erase the last few minutes of your memory from before you are injected with it. This is different from Versed, which stops you from recording memories after you take it.

Both raise interesting questions about unethical use. Propofol knocks you out, so it’s perhaps of only limited use in interrogation, but I wonder whether more specific drugs might exist in secret (or come along with time) to just zap the memory. (I would have to learn more about how it acts to consider if that’s possible.)

Both bring up thoughts of the difference between our firmware and our RAM. Our real-time thoughts and very short term memories seem to exist in a very ephemeral form, perhaps even as electrical signals. Similar to RAM — turn off the computer and the RAM is erased, but the hard disk is fine. People who flatline or go through serious trauma often wake up with no memory of the accident itself, because they lost this RAM. They were “rebooted” from more permanent encodings of their mind and personality — wirings of neurons or glia etc. How often does this reboot occur? We typically don’t recall the act of falling asleep, or even events or words from just before falling asleep, though the amnesia isn’t nearly so long as that of people who flatline.

These drugs most trigger something similar to this reboot. While under Versed, I had conversations. I have no recollection of after the drug was injected, however. It is as if there was a version of me which became a “fork.” What he did and said was destined to vanish, my brain rebooting to the state before the drug. Had this other me been aware of it, I might have thought that this instance of me was doomed to a sort of death. How would you feel if you knew that what you did today would be erased, and tomorrow your body — not the you of the moment — would wake up with the same memories and personality as you woke up with earlier today? Of course many SF writers have considered this as well as some philosophers. It’s just interesting to see drugs making the question more real than it has been before.

Converting vinyl to digital, watch the tone arm

After going through the VHS to digital process, which I lamented earlier I started wondering about the state of digitizing old vinyl albums and tapes is.

There are a few turntable/cd-writer combinations out there, but like most people today, I’m interested in the convenience of compressed digital audio which means I don’t want to burn to CDs at all, and nor would I want to burn to 70 minute CDs I have to change all the time just so I can compress later. But all this means I am probably not looking for audiophile quality, or I wouldn’t be making MP3s at all. (I might be making FLACs or sampling at a high rate, I suppose.)

What I would want is convenience and low price. Because if I have to spend $500 I probably would be better off buying my favourite 500 tracks at online music stores, which is much more convenient. (And of course, there is the argument over whether I should have to re-buy music I already own, but that’s another story. Some in the RIAA don’t even think I should be able to digitize my vinyl.)

For around $100 you can also get a “USB turntable.” I don’t have one yet, but the low end ones are very simple — a basic turntable with a USB sound chip in it. They just have you record into Audacity. Nothing very fancy. But I feel this is missing something.

Just as the VHS/DVD combo is able to make use of information like knowing the tape speed and length, detecting index marks and blank tape, so should our album recorder. It should have a simple sensor on the tone arm to see as it moves over the album (for example a disk on the axis of the arm with rings of very fine lines and an optical sensor.) It should be able to tell us when the album starts, when it ends, and also detect those 2-second long periods between tracks when the tone arm is suddenly moving inward much faster than it normally is. Because that’s a far better way to break the album into tracks than silence detection. (Of course, you can also use CDDB/Freedb to get track lengths, but they are never perfect so the use of this, net data and silence detection should get you perfect track splits.) It would also detect skips and repeats this way.  read more »

We don't live in a 3D world

Ever since the first science fiction about cyberspace (First seen in Clarke’s 1956 “The City and the Stars” and more fully in 1976’s “Doctor Who: The Deadly Assassin”) people have wanted to build online 3-D virtual worlds. Snow Crash gelled it even further for people. 3D worlds have done well in games, including Mmorpgs and recently Second Life has attracted a lot of attention, first for its interesting world and its even more interesting economy, but lately for some of the ways it has not succeeded, such as a site for corporate sponsored stores.

Let me present one take on why 3D is not all it’s cracked up to be. Our real world is 3D of course, but we don’t view it that way. We take it in via our 2D eyes, and our 1.5D ears and then build a model of its 3D elements good enough to work in it. In a way I will call this 2.5D because it’s more than 2D but less than 3. But because we start in two dimensions, and use 2D screens, 3D interfaces on a flat screen are actually worse than ones designed for 2D. Anybody who tired the original VRML experiments that attempted to build site navigation in 3D, where you had to turn around your virtual body in order to use one thing or another, realized that.

Now it turns out the fact that 3D is harder is a good thing when it comes to games. Games are supposed to be a challenge. It’s good that you can’t see everything and can get confused. It’s good that you can sneak up behind your enemy, unseen, and shoot him. Because it makes the game harder to win, 3D works in games.

But for non-games, including second life, 3D can just plain make it harder. We have a much easier time with interfaces that are logical, not physical, and present all the information we need to use the system in one screen we can always see. The idea that important things can be “behind us” makes little sense in a computer environment. And that’s true for social settings. When you sit in a room of people and talk, it’s a bug that some people are behind you and some are in front of you. You want to see everybody, and have everybody see your face, the way the speaker on a podium would. The real 3D world can’t do that for a group of people, but virtual worlds can.

I am not saying 3D can’t have its place. You want and need it for modeling things form the real world, as in CAD/CAM. 3D can be a place to show off certain things, and of course a place to play games.

In making second life, a better choice might have been a 2D interface that has portals to occasional 3D environments for when those environments make sense. That would let those who want to build 3D objects in the environment get the ability to do so. But this would not have been nearly as sexy or as Snow-Crashy, so they didn’t do it. Indeed, it would look too much like an incremental improvement over the web, and that might not have gotten the same excitement, even if it’s the right thing to do. The web is also 2.5D, a series of 2D web pages with an arbitrary network of connections between them that exists in slightly more than 2 dimensions. And it has its 3D enclaves, though they are rare and mostly hard to use.

Another idea for a VR world might be a 3D world with 360 degree vision. You could walk around it but you could always see everything, laid out as a panorama. You would not have to turn, just point where you wish to go. It might be confusing at first but I think that could be worth experimenting with.

Burning Man 2006 Gallery

It’s way late, but I finally put captions on my gallery of regular-aspect photos from Burning Man 2006.

Some time ago I put together the 2006 Panoramas but just never got around to doing the regulars. There are many fun ones here, an particular novel are the ones of the burn taken from above it on a boomlift.

I also did another aerial survey, but that remains unfinished. Way too much processing to do, and Google did a decent one in google maps. I did put up a few such photos there.

Enjoy the 2006 Burning Man Photos.


Another silly lolcat

Based on the common lolcat message, “I’m in ur base, killing ur d00ds.”

iPhone eBay Frenzy

Earlier I wrote about the frenzy buying Plastation 3s on eBay and lessons from it. There’s a smaller scale frenzy going on now about the iPhone, which doesn’t go on sale until 6pm today. With the PS3, many stores pre-sold them, and others lined up. In theory Apple/AT&T are not pre-selling, and limiting people to 2 units, though many eBay sellers are claiming otherwise.

The going price for people who claim they have one, either for some unstated reason, or because they are first in line at some store, is about $1100, almost twice the cost. A tidy profit for those who wait in line, time their auction well and have a good enough eBay reputation to get people to believe them. Quite a number of such auctions have closed at such prices with “buy it now.” If you live in a town without a frenzy and line it might do you well to go down to pick up two iPods. Bring your laptop with wireless access to update your eBay auction. None of the auctions I have seen have gone so far as to show a picture of the seller waiting in line to prove it.

eBay has put down some hard terms on iPhone sellers and pre-sellers. It says it does not allow pre-sales, but seems to be allowing those sellers who claim they can guarantee a phone. It requires a picture of the actual item in hand, with a non-photoshopped sign in the picture with the seller’s eBay name. A number of items show a stock photo with an obviously photoshopped tag. In spite of the publicised limit of 2, a number of people claim they have 4 or more.

It seems Apple may have deliberately tried to discourage this by releasing at 6pm on Friday, too late to get to Fedex in most places. Thus all most sellers can offer is getting the phone Monday, which is much less appealing, since that leaves a long window to learn that there are plenty more available Monday, and loses the all-important bragging rights of having an iPhone at weekend social events. Had they released it just a few hours earlier, I think sales like this would have been far more lucrative. (While Apple would not want to leave money on the table, it’s possible high eBay prices would add to the hype and be in their interest.)

As before, I predict timing of auctions will be very important. At this point even a 1 day auction will close after 18 hours of iPhone sales, adding a lot of rish. The PS3 kept its high value for much of the Christmas season, but the iPhone, if not undersupplied, may drop to retail in as little as a day. A standard 1 week auction would be a big mistake. Frankly I think paying $1200 (or a $300 wait-in-line fee) is pretty silly.

The iPhone, by the way, seems like a cool generalized device. A handheld that has the basic I/O tools including GSM phone and is otherwise completely made of touchscreen seems a good general device for the future. Better with a small bluetooth keyboard. Whether this device will be “the one” remains to be seen, of course.

Update:  read more »

Is robot delivery on the roadmap for self-driving cars?

Last week I talked briefly about self-driving delivery vehicles. I’ve become interested in what I’ll call the “roadmap” (pun intended) for the adoption of self-driving cars. Just how do we get there from here, taking the technology as a given? I’ve seen and thought of many proposals, and been ignoring the one that should stare us in the face — delivery. I say that because this is the application the DARPA grand challenge is actually aimed at. They want to move cargo without risks to soldiers. We mostly think of that as a path to the tech that will move people, but it may be the pathway.

Robot delivery vehicles have one giant advantage. They don’t have to be designed for passenger safety, and you don’t have to worry about that when trying to convince people to let them on the road. They also don’t care nearly as much about how fast they get there. Instead what we care about is whether they might hit people, cars or things, or get in the way of cars. If they hit things or hurt their cargo, that’s usually just an insurance matter. In fact, in most cases even if they hit cars, or cars hit them, that will just be an insurance matter.

A non-military cargo robot can be light and simple. It doesn’t need crumple zones or airbags. It might look more like a small electric trike, on bicycle wheels. (Indeed, the Blue Team has put a focus on making it work on 2 wheels, which could be even better.) It would be electric (able to drive itself to charging stations as needed) and mechanically, very cheap.

The first step will be to convince people they can’t hit pedestrians. To do that, the creators will need to make an urban test track and fill it with swarms of the robots, and demonstrate that they can walk out into the swarm with no danger. Indeed, like a school of fish, it should be close to impossible to touch one even if you try. Likewise, skeptics should be able to get onto bicycles, motorcycles, cars and hummers and drive right through the schools of robots, unable to hit one if they try. After doing that for half an hour and getting tired, doubters will be ready to accept them on the roads.  read more »

E-mail programs should be time-management programs

For many of us, E-mail has become our most fundamental tool. It is not just the way we communicate with friends and colleagues, it is the way that a large chunk of the tasks on our “to do” lists and calendars arrive. Of course, many E-mail programs like Outlook come integrated with a calendar program and a to-do list, but the integration is marginal at best. (Integration with the contact manager/address book is usually the top priority.)

If you’re like me you have a nasty habit. You leave messages in your inbox that you need to deal with if you can’t resolve them with a quick reply when you read them. And then those messages often drift down in the box, off the first screen. As a result, they are dealt with much later or not at all. With luck the person mails you again to remind you of the pending task.

There are many time management systems and philosophies out there, of course. A common theme is to manage your to-do list and calendar well, and to understand what you will do and not do, and when you will do it if not right away. I think it’s time to integrate our time management concepts with our E-mail. To realize that a large number of emails or threads are also a task, and should be bound together with the time manager’s concept of a task.

For example, one way to “file” an E-mail would be to the calendar or a day oriented to-do list. You might take an E-mail and say, “I need 20 minutes to do this by Friday” or “I’ll do this after my meeting with the boss tomorrow.” The task would be tied to the E-mail. Most often, the tasks would not be tied to a specific time the way calendar entries are, but would just be given a rough block of time within a rough window of hours or days.

It would be useful to add these “when to do it” attributes to E-mails, because now delegating a task to somebody else can be as simple as forwarding the E-mail-message-as-task to them.

In fact, because, as I have noted, I like calendars with free-form input (ie. saying “Lunch with Peter 1pm tomorrow” and having the calender understand exactly what to do with it) it makes sense to consider the E-mail window as a primary means of input to the calendar. For example, one might add calendar entries by emailing them to a special address that is processed by the calendar. (That’s a useful idea for any calendar, even one not tied at all to the E-mail program.)

One should also be able to assign tasks to places (a concept from the “Getting Things Done” book I have had recommended to me.) In this case, items that will be done when one is shopping, or going out to a specific meeting, could be synced or sent appropriately to one’s mobile device, but all with the E-mail metaphor.

Because there are different philosophies of time management, all with their fans, one monolithic e-mail/time/calendar/todo program may not be the perfect answer. A plug-in architecture that lets time managers integrate nicely with E-mail could be a better way to do it.

Some of these concepts apply to the shared calendar concepts I wrote about last month.

ICANN Has Cheezburger?

Ok, I couldn’t resist. If this makes no sense to you, sorry, explaining isn’t going to make it funny. Look up lolcats.

Thanks to David Farrar for the original ICANN board picture.

Unique Pseudonyms: QID

I wrote recently about the paradox of identity management and how the easier it is to offer information, the more often it will be exchanged.

To address some of these issues, let me propose something different: The creation of an infrastructure that allows people to generate secure (effectively anonymous) pseudonyms in a manner that each person can have at most one such ID. (There would be various classes of these IDs, so people could have many IDs, but only one of each class.) I’ll call this a QID (the Q “standing” for “unique.”)

The value of a unique ID is strong — it allows one to associate a reputation with the ID. Because you can only get one QID, you are motivated to carefully protect the reputation associated with it, just as you are motivated to protect the reputation on your “real” identity. With most anonymous systems, if you develop a negative reputation, you can simply discard the bad ID and get a new one which has no reputation. That’s annoying but better than using a negative ID. (Nobody on eBay keeps an account that gets a truly negative reputation. An account is abandoned as soon as the reputation seems worse than an empty reputation.) In effect, anonymous IDs let you demonstrate a good reputation. Unique IDs let you demonstrate you don’t have a negative reputation. In some cases systems try to stop this by making it cost money or effort to generate a new ID, but it’s a hard problem. Anti-spam efforts don’t really care about who you are, they just want to know that if they ban you for being a spammer, you stay banned. (For this reason many anti-spam crusaders currently desire identification of all mailers, often with an identity tied to a real world ID.)

I propose this because many web sites and services which demand accounts really don’t care who you are or what your E-mail address is. In many cases they care about much simpler things — such as whether you are creating a raft of different accounts to appear as more than one person, or whether you will suffer negative consequences for negative actions. To solve these problems there is no need to provide personal information to use such systems.  read more »

Review of The Old Man's War Trilogy by John Scalzi

In 2005, John Scalzi burst on the scene with a remarkable first novel, Old Man’s War. It got nominated for a Hugo and won him the Campbell award for best new writer. Many felt it was the sort of novel Heinlein might be writing today. That might be too high a praise, but it’s close. The third book in this trilogy has just come out, so it was time to review the set.

It’s hard to review the book without some spoilers, and impossible for me to review the latter two books without spoiling the first, but I’ll warn you when that’s going to happen.

OMW tells the story of John Perry, a 75 year old man living on an Earth only a bit more advanced than our own, but it’s hundreds of years in the future. Earth people know they’re part of a collection of human colonies which does battle with nasty aliens, but they are kept in the dark about the realities. People in the third world are offered o ne way trips to join colonies. People in the 1st world can, when they turn 75, sign up for the colonial military, again a one-way trip. It’s not a hard choice to make since everybody presumes the military will make them young again, and the alternative is ordinary death by old age.

The protagonist and his wife sign up, but she dies before the enlistment date, so he goes on his own. The first half of the book depicts his learning the reality of the colonial union, and boot camp, and the latter half outlines his experiences fighting against various nasty aliens.

It’s a highly recommended read. If you loved Starship Troopers or The Forever War this is your kind of book. Now I’ll go into some minor spoilers.  read more »

The paradox of identity management

Since the dawn of the web, there has been a call for a “single sign-on” facility. The web consists of millions of independently operated web sites, many of which ask users to create “accounts” and sign-on to use the site. This is frustrating to users.

Today the general single sign-on concept has morphed into what is now called “digital identity management” and is considerably more complex. The most recent project of excitement is OpenID which is a standard which allows users to log on using an identifier which can be the URL of an identity service, possibly even one they run themselves.

Many people view OpenID as positive for privacy because of what came before it. The first major single sign-on project was Microsoft Passport which came under criticism both because all your data was managed by a single company and that single company was a fairly notorious monopoly. To counter that, the Liberty Alliance project was brewed by Sun, AOL and many other companies, offering a system not run by any single company. OpenID is simpler and even more distributed.

However, I feel many of the actors in this space are not considering an inherent paradox that surrounds the entire field of identity management. On the surface, privacy-conscious identity management puts control over who gets identity information in the hands of the user. You decide who to give identity info to, and when. Ideally, you can even revoke access, and push for minimal disclosure. Kim Cameron summarized a set of laws of identity outlining many of these principles.

In spite of these laws one of the goals of most identity management systems has been ease of use. And who, on the surface, can argue with ease of use? Managing individual accounts at a thousand web sites is hard. Creating new accounts for every new web site is hard. We want something easier.

The paradox

However, here is the contradiction. If you make something easy to do, it will be done more often. It’s hard to see how this can’t be true. The easier it is to give somebody ID information, the more often it will be done. And the easier it is to give ID information, the more palatable it is to ask for, or demand it.  read more »

Stig's Inferno Final Issue

In the 1980s, my brother Ty Templeton published his first independent comic book series, Stig’s Inferno. He went on to considerable fame writing and drawing comics for Marvel, D.C. and many others, including favourite characters like Superman, Batman and Spider-Man, as well as a lot of comics associated with TV shows like The Simpsons and Ren and Stimpy. But he’s still at his best doing original stuff.

You may not know it, but years ago I got most of Stig’s Inferno up on the web. Just this week however, a fan scanned in the final issue and I have converted it into web pages. The fan also scanned the covers and supplemental stories from the issues, they will be put up later.

So if you already enjoyed the other episodes journey now to Stig’s Inferno #7.

If you never looked go to The main Stig’s Inferno page. You can also check out small versions of all the issue covers.

I’ll announce when the supplemental stories are added.

The comic tells a variation of Dante’s Inferno, where our hero Stig is killed by the creatures that live in his piano and makes a strange journey through the netherworld. It’s funny stuff, and I’m not just saying it because he’s my brother. Give it a read.

A Package packager to compartmentalize my system changes

First, let me introduce a new blog topic, Sysadmin where I will cover computer system administration and OS design issues, notably in Linux and related systems.

My goal is to reduce the nightmare that is system administration and upgrading.

One step that goes partway in my plan would be a special software system that would build for a user a specialized operating system “package” or set of packages. This magic package would, when applied to a virgin distribution of the operating system, convert it into the customized form that the user likes.

The program would work from a modified system, and a copy of a map (with timestamps and hashes) of the original virgin OS from which the user began. First, it would note what packages the user had installed, and declare dependencies for these packages. Thus, installing this magic package would cause the installation of all the packages the user likes, and all that they depend on.

In order to do this well, it would try to determine which packages the user actually used (with access or file change times) and perhaps consider making two different dependency setups — one for the core packages that are frequently used, and another for packages that were probably just tried and never used. A GUI to help users sort packages into those classes would be handy. It must also determine that those packages are still available, dealing with potential conflicts and name change concerns. Right now, most package managers insist that all dependencies be available or they will abort the entire install. To get around this, many of the packages might well be listed as “recommended” rather than required, or options to allow install of the package with missing 1st level (but not 2nd level) dependencies would be used.  read more »