Unreal Engine 5 is meant to ridicule web developers

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Our sources report that the underlying reason behind the impressive tech demo for Unreal Engine 5 by Epic Games is to ridicule web developers.

According to the Washington Post, the tech demo includes a new dynamic lighting system and a rendering approach with a much higher geometric detail for both shapes and textures. For example, a single statue in the demo can be rendered with 33 million triangles, giving it a truly unprecedented level of detail and visual density.

Turns out that the level of computational optimization and sheer power of this incredible technology is meant to make fun of web developers, who struggle to maintain 15fps while scrolling a single-page application on a $2000 MacBook Pro, while enjoying 800ms delays typing the corresponding code into their Electron-based text editors.

Funny but sadly true. However, the Web can be fast. What makes it slow is bloated, kitchen-sink-and-all frontend frameworks, pushing computational effort to the browser with overcomplicated DOM trees and unnecessarily rich CSS rules, developer privilege, and blindness to the lower-powered devices that make up most of the browsing world. Oh, and of course embedding a million third-party scripts to get you all the analytics, advertising, etc. you think you need doesn’t help, either.

The Web will never be as fast as native, for obvious reasons. But it can be fast; blazingly so. It just requires a little thought and consideration. I’ve talked about this recently.


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As we’ve mentioned in previous blog posts, the $FAMOUS_COMPANY backend has historically been developed in $UNREMARKABLE_LANGUAGE and architected on top of $PRACTICAL_OPEN_SOURCE_FRAMEWORK. To suit our unique needs, we designed and open-sourced $AN_ENGINEER_TOOK_A_MYTHOLOGY_CLASS, a highly-available, just-in-time compiler for $UNREMARKABLE_LANGUAGE.

Saagar Jha tells the now-familiar story of how a bunch of techbros solved their scaling problems by reinventing the wheel. And then, when that didn’t work out, moved the goalposts of success. It’s a story as old as time; or at least as old as the modern Web.

(Should’a strangled the code. Or better yet, just refactored what they had.)

Visitors, Developers, or Machines

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The performance tradeoff isn’t about where the bottleneck is. It’s about who has to carry the burden. It’s one thing for a developer to push the burden onto a server they control. It’s another thing entirely to expect visitors to carry that load when connectivity and device performance isn’t a constant.

This is another great take on the kind of thing I was talking about the other day: some developers who favour heavy frameworks (e.g. React) argue for the performance benefits, both in development velocity and TTFB. But TTFB alone is not a valid metric of a user’s perception of an application’s performance: if you’re sending a fast payload that then requires extensive execution and/or additional calls to the server-side, it stands to reason that you’re not solving a performance bottleneck, you’re just moving it.

I, for one, generally disfavour solutions that move a Web application’s bottleneck to the user’s device (unless there are other compelling reasons that it should be there, for example as part of an Offline First implementation, and even then it should be done with care). Moving the burden of the bottleneck to the user’s device disadvantages those on slower or older devices and limits your ability to scale performance improvements through carefully-engineered precaching e.g. static compilation. It also produces a tendency towards a thick-client solution, which is sometimes exactly what you need but more-often just means a larger initial payload and more power consumption on the (probably mobile) user’s device.

Next time you improve performance, ask yourself where the time saved has gone. Some performance gains are genuine; others are just moving the problem around.

Mackerelmedia Fish

Normally this kind of thing would go into the ballooning dump of “things I’ve enjoyed on the Internet” that is my reposts archive. But sometimes something is so perfect that you have to try to help it see the widest audience it can, right? And today, that thing is: Mackerelmedia Fish.

Mackerelmedia Fish reports: WARNING! Your Fish have escaped!
Historical fact: escaped fish was one of the primary reasons for websites failing in 1996.

What is Mackerelmedia Fish? I’ve had a thorough and pretty complete experience of it, now, and I’m still not sure. It’s one or more (or none) of these, for sure, maybe:

  • A point-and-click, text-based, or hypertext adventure?
  • An homage to the fun and weird Web of yesteryear?
  • A statement about the fragility of proprietary technologies on the Internet?
  • An ARG set in a parallel universe in which the 1990s never ended?
  • A series of surrealist art pieces connected by a loose narrative?

Rock Paper Shotgun’s article about it opens with “I don’t know where to begin with this—literally, figuratively, existentially?” That sounds about right.

I stared into THE VOID and am OK!
This isn’t the reward for “winning” the “game”. But I was proud of it anyway.

What I can tell you with confident is what playing feels like. And what it feels like is the moment when you’ve gotten bored waiting for page 20 of Argon Zark to finish appear so you decide to reread your already-downloaded copy of the 1997 a.r.k bestof book, and for a moment you think to yourself: “Whoah; this must be what living in the future feels like!”

Because back then you didn’t yet have any concept that “living in the future” will involve scavenging for toilet paper while complaining that you can’t stream your favourite shows in 4K on your pocket-sized supercomputer until the weekend.

Dancing... thing?
I was always more of a Bouncing Blocks than a Hamster Dance guy, anyway.

Mackerelmedia Fish is a mess of half-baked puns, retro graphics, outdated browsing paradigms and broken links. And that’s just part of what makes it great.

It’s also “a short story that’s about the loss of digital history”, its creator Nathalie Lawhead says. If that was her goal, I think she managed it admirably.

An ASCII art wizard on a faux Apache directory listing page.
Everything about this, right down to the server signature (Artichoke), is perfect.

If I wasn’t already in love with the game already I would have been when I got to the bit where you navigate through the directory indexes of a series of deepening folders, choose-your-own-adventure style. Nathalie writes, of it:

One thing that I think is also unique about it is using an open directory as a choose your own adventure. The directories are branching. You explore them, and there’s text at the bottom (an htaccess header) that describes the folder you’re in, treating each directory as a landscape. You interact with the files that are in each of these folders, and uncover the story that way.

Back in the naughties I experimented with making choose-your-own-adventure games in exactly this way. I was experimenting with different media by which this kind of branching-choice game could be presented. I envisaged a project in which I’d showcase the same (or a set of related) stories through different approaches. One was “print” (or at least “printable”): came up with a Twee1-to-PDF converter to make “printable” gamebooks. A second was Web hypertext. A third – and this is the one which was most-similar to what Nathalie has now so expertly made real – was FTP! My thinking was that this would be an adventure game that could be played in a browser or even from the command line on any (then-contemporary: FTP clients aren’t so commonplace nowadays) computer. And then, like so many of my projects, the half-made version got put aside “for later” and forgotten about. My solution involved abusing the FTP protocol terribly, but it worked.

(I also looked into ways to make Gopher-powered hypertext fiction and toyed with the idea of using YouTube annotations to make an interactive story web [subsequently done amazingly by Wheezy Waiter, though the death of YouTube annotations in 2017 killed it]. And I’ve still got a prototype I’d like to get back to, someday, of a text-based adventure played entirely through your web browser’s debug console…! But time is not my friend… Maybe I ought to collaborate with somebody else to keep me on-course.)

Three virtual frogs. One needs a hug.
My first batch of pet frogs died quite quickly, but these ones did okay.

In any case: Mackerelmedia Fish is fun, weird, nostalgic, inspiring, and surreal, and you should give it a go. You’ll need to be on a Windows or OS X computer to get everything you can out of it, but there’s nothing to stop you starting out on your mobile, I imagine.

Sso long as you’re capable of at least 800 × 600 at 256 colours and have 4MB of RAM, if you know what I mean.

Digital Climate Strike’s Carbon Footprint

Ironically, the web page promoting the “Digital Climate Strike” is among the dirtiest on the Internet, based on the CO2 footprint of visiting it.

Global Climate Strike's "Take Action" webpage
Save your bandwidth: just look at this screenshot of the site instead of visiting.

Going to that page results in about 14 Mb of data being transmitted from their server to your device (which you’ll pay for if you’re on a metered connection). For comparison, reading my recent post about pronouns results in about 356 Kb of data. In other words, their page is forty times more bandwidth-consuming, despite the fact that my page has about four times the word count. The page you’re reading right now, thanks to its images, weighs in at about 650 Kb: you could still download it more than twenty times while you were waiting for theirs.

globalclimatestrike.net/action: "Uh oh! This web page is dirtier than 97% of web pages tested. Oh my, 7.74g of CO2 is produced every time someone visits this web page."
Well that’s got to be pretty embarassing.

Worse still, the most-heavyweight of the content they deliver is stuff that’s arguably strictly optional and doesn’t add to the message:

  • Eight different font files are served from three different domains (the fonts alone consume about 140 Kb) – seven more are queued but not used.
  • Among the biggest JavaScript files they serve is that of Hotjar analytics: I understand the importance of measuring your impact, but making your visitors – and the planet – pay for it is a little ironic.
  • The biggest JavaScript file seems to be for Mapbox, which as far as I can see is never actually used: that map on the page is a static image which, incidentally, I was able to reduce from 0.5 Mb to 0.2 Mb just by running it through a free online image compressor.
Image compression comparison for the map image. Before: 536K, after: 201K (-63%).
This took me literally seconds to do but would save about a twelfth of a second for every single typical 4G user to their site. And it’s not even the worst culprit.

And because the site sets virtually no caching headers, even if you’ve visited the website before you’re likely to have to download the whole thing again. Every single time.

It’s not just about bandwidth: all of those fonts, that JavaScript, their 60 Kb of CSS (this page sent you 13 Kb) all has to be parsed and interpreted by your device. If you’re on a mobile device or a laptop, that means you’re burning through lithium (a non-renewable resource whose extraction and disposal is highly polluting) and regardless of your device you’re using you’re using more electricity to visit their site than you need to. Coding antipatterns like document.write() and active event listeners that execute every time you scroll the page keep your processor working hard, turning electricity into waste heat. It took me over 12 seconds on a high-end smartphone and a good 4G connection to load this page to the point of usability. That’s 12 seconds of a bright screen, a processor running full tilt,a  data connection working its hardest, and a battery ticking away. And I assume I’m not the only person visiting the website today.

This isn’t really about this particular website, of course (and I certainly don’t want to discourage anybody from the important cause of saving the planet!). It’s about the bigger picture: there’s a widespread and long-standing trend in web development towards bigger, heavier, more power-hungry websites, built on top of heavyweight frameworks that push the hard work onto the user’s device and which favour developer happiness over user experience. This is pretty terrible: it makes the Web slow, and brittle, and it increases the digital divide as people on slower connections and older devices get left behind.

(Bonus reading: luckily there’s a counterculture of lean web developers…)

But this trend is also bad for the environment, and when your website exists to try to save it, that’s more than a little bit sad.

idTech 4 WebAssembly port – Doom 3 Demo

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Doom 3 running in Dan's web browser

Back in 2011, some folks cross-compiled Doom (the original, not the reboot, obviously) to JavaScript, leveraging the capabilities of the then-relatively-young <canvas> element and APIs. I was really impressed to see that JavaScript had come so far and that performance on desktop devices was so slick. Sure, this was an 18-year-old video game, but it was playable in a browser, which was a long way from the environment for which it was originally developed.

Now Doom 3‘s playable in a browser, and my mind’s blown all over again. This follows almost the same curve – Doom 3’s 16 years old – but it still goes to show that there’s little limit to the power of client-side browser programming. They’ve done this magic with WebAssembly; while WebAssembly goes slightly against my ideas about the open-source nature of the Web, I still respect the power it commands to do heavyweight crunching tasks like this one.

How long until AAA developers start developing with the Web as an additional platform?

BingO Bakery

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Don’t understand why Web accessibility is important? Need a quick and easily-digestible guide to the top things you should be looking into in order to make your web applications screenreader ready? Try this fun, video-game-themed 5 minute video from Microsoft.

There’s a lot more to accessibility than is covered here, and it’s perhaps a little over-focussed on screenreaders, but it’s still a pretty awesome introduction.

Pay Up, Or We’ll Make Google Ban Your Ads

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A new email-based extortion scheme apparently is making the rounds, targeting Web site owners serving banner ads through Google’s AdSense program. In this scam, the fraudsters demand bitcoin in exchange for a promise not to flood the publisher’s ads with so much bot and junk traffic that Google’s automated anti-fraud systems suspend the user’s AdSense account for suspicious traffic.

The shape of our digital world grows increasingly strange. As anti-DoS techniques grow better and more and more uptime-critical websites hide behind edge caches, zombie network operators remain one step ahead and find new and imaginative ways to extort money from their victims. In this new attack, the criminal demands payment (in cryptocurrency) under threat that, if it’s not delivered, they’ll unleash an army of bots to act like the victim trying to scam their advertising network, thereby getting the victim’s site demonetised.

Old CSS, new CSS

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I first got into web design/development in the late 90s, and only as I type this sentence do I realize how long ago that was.

And boy, it was horrendous. I mean, being able to make stuff and put it online where other people could see it was pretty slick, but we did not have very much to work with.

I’ve been taking for granted that most folks doing web stuff still remember those days, or at least the decade that followed, but I think that assumption might be a wee bit out of date. Some time ago I encountered a tweet marvelling at what we had to do without border-radius. I still remember waiting with bated breath for it to be unprefixed!

But then, I suspect I also know a number of folks who only tried web design in the old days, and assume nothing about it has changed since.

I’m here to tell all of you to get off my lawn. Here’s a history of CSS and web design, as I remember it.

(Please bear in mind that this post is a fine blend of memory and research, so I can’t guarantee any of it is actually correct, especially the bits about causality. You may want to try the W3C’s history of CSS, which is considerably shorter, has a better chance of matching reality, and contains significantly less swearing.)

(Also, this would benefit greatly from more diagrams, but it took long enough just to write.)

I too remember the bad-old days of the pre-CSS and early-CSS Web. Back then, when we were developing for it, we thought that it was magical. We tolerated issues like having to copy-paste our navigation around a stack of static pages, manually change our design all over the place etc…. but man… I wouldn’t want to go back to working that way!

This is an excellent long-read for an up-close-and-personal look at how CSS has changed over the decades. Well worth a look if you’ve any interest in the topic.

Building the most inaccessible site possible with a perfect Lighthouse score

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Google’s built-in testing tool Lighthouse judges the accessibility of our websites with a score between 0 and 100. It’s laudable to try to get a high grading, but a score of 100 doesn’t mean that the site is perfectly accessible. To prove that I carried out a little experiment.

Manuel Matuzovic wrote a web page that’s pretty-much inaccessible to everybody: it doesn’t work with keyboard navigation, touchscreens, or mice. It doesn’t work with screen readers. Even if you fix the other problems, its contrast is bad enough that almost nobody could read it. It fails ungracefully if CSS or JavaScript is unavailable. Even the source code is illegible. This took a special kind of evil.

But it scores 100% for accessibility on Lighthouse! I earned my firework show for this site last year but I know better than to let that lull me into complacency: accessibility isn’t something a machine can test for you, only something that (at best) it can give you guidance on.

Geohashing Resurected

I keep my life pretty busy and don’t get as much “outside” as I’d like, but when I do I like to get out on an occasional geohashing expedition (like these ones). I (somewhat badly) explained geohashing in the vlog attached to my expedition 2018-08-07 51 -1, but the short version is this: an xkcd comic proposed an formula to use a stock market index to generate a pair of random coordinates, impossible to predict in advance, for each date. Those coordinates are (broadly) repeated for each degree of latitude and longitude throughout the planet, and your challenge is to get to them and discover what’s there. So it’s like geocaching, except you don’t get to find anything at the end and there’s no guarantee that the destination is even remotely accessible. I love it.

xkcd #426: Geohashing
My favourite kind of random pointlessness is summarised by this algorithm.

Most geohashers used to use a MediaWiki-powered website to coordinate their efforts and share their stories, until a different application on the server where it resided got hacked and the wiki got taken down as a precaution. That was last September, and the community became somewhat “lost” this winter as a result. It didn’t stop us ‘hashing, of course: the algorithm’s open-source and so are many of its implementations, so I was able to sink into a disgusting hole in November, for example. But we’d lost the digital “village square” of our community.

Graph of Dan's dissertation progress as the deadline creeps closer
My dissertation “burndown” is characterised on my whiteboard by two variables: outstanding issues (blue) and wordcount (red). There are… a few problems.

So I emailed Davean, who does techy things for xkcd, and said that I’d like to take over the Geohashing wiki but that I’d first like (a) his or Randall’s blessing to do so, and ideally (b) a backup of the pages of the site as it last-stood. Apparently I thought that my new job plus finishing my dissertation plus trying to move house plus all of the usual things I fill my time with wasn’t enough and I needed a mini side-project, because when I finally got the go-ahead at the end of last month I (re)launched geohashing.site. Take a look, if you like. If you’ve never been Geohashing before, there’s never been a more-obscure time to start!

geohashing.site homepage
My implementation of the site is mobile-friendly for the benefit of people who might want to use it while out in a muddy ditch. For example. Just hypothetically.

Luckily, it’s not been a significant time-sink for me: members of the geohashing community quickly stepped up to help me modernise content, fix bots, update hyperlinks and the like. I took the opportunity to fix a few things that had always bugged me about the old site, like the mobile-unfriendly interface and the inability to upload GPX files, and laid the groundwork to make bigger changes down the road (like changing the way that inline maps are displayed, a popular community request).

So yeah: Geohashing’s back, not that it ever went away, and I got to be part of the mission to make it so. I feel like I am, as geohashers say… out standing in my field.

New browser on the block: Flow

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2020 is only three weeks old, but there has been a lot of browser news that decreases rendering engine diversity. It’s time for some good news on that front: a new rendering engine, Flow. Below I conduct an interview with Piers Wombwell, Flow’s lead developer.

This year alone, on the negative side Mozilla announced it’s laying off 70 people, most of whom appear to come from the browser side of things, while it turns out that Opera’s main cash cow is now providing loans in Kenya, India, and Nigeria, and it is looking to use ‘improved credit scoring’ (from browsing data?) for its business practices.

On the positive side, the Chromium-based Edge is here, and it looks good. Still, rendering engine diversity took a hit, as we knew it would ever since the announcement.

So let’s up the diversity a notch by welcoming a new rendering engine to the desktop space. British company Ekioh is working on a the Flow browser, which sports a completely new multi-threaded rendering engine that does not have any relation to WebKit, Gecko, or Blink.

Well, I didn’t expect this bit of exciting news!

I’m not convinced that Flow is the solution to all the world’s problems (its target platforms and use-cases alone make it unlikely to make it onto the most-used-browsers leaderboard any time soon), but I’m really glad that my doomsaying about the death of browser diversity being a one-way street might… might… turn out not to be true.

Time will tell. But for now, this is Good News for the Web.

CSS4 is here!

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I think that CSS would be greatly helped if we solemnly state that “CSS4 is here!” In this post I’ll try to convince you of my viewpoint.

I am proposing that we web developers, supported by the W3C CSS WG, start saying “CSS4 is here!” and excitedly chatter about how it will hit the market any moment now and transform the practice of CSS.

Of course “CSS4” has no technical meaning whatsoever. All current CSS specifications have their own specific versions ranging from 1 to 4, but CSS as a whole does not have a version, and it doesn’t need one, either.

Regardless of what we say or do, CSS 4 will not hit the market and will not transform anything. It also does not describe any technical reality.

Then why do it? For the marketing effect.

Hurrah! CSS4 is here!

I’m sure that, like me, you’re excited to start using the latest CSS technologies, like paged media, hyphen control, the zero-specificity :where() selector, and new accessibility selectors like the ‘prefers-reduced-motion’ @media query. The browser support might not be “there” yet, but so long as you’ve got a suitable commitment to progressive enhancement then you can be using all of these and many more today (I am!). Fantastic!

But if you’ve got more than a little web savvy you might still be surprised to hear me say that CSS4 is here, or even that it’s a “thing” at all. Welll… that’s because it isn’t. Not officially. Just like JavaScript’s versioning has gone all evergreen these last few years, CSS has gone the same way, with different “modules” each making their way through the standards and implementation processes independently. Which is great, in general, by the way – we’re seeing faster development of long-overdue features now than we have through most of the Web’s history – but it does make it hard to keep track of what’s “current” unless you follow along watching very closely. Who’s got time for that?

When CSS2 gained prominence at around the turn of the millennium it was revolutionary, and part of the reason for that – aside from the fact that it gave us all some features we’d wanted for a long time – was that it gave us a term to rally behind. This browser already supports it, that browser’s getting there, this other browser supports it but has a f**ked-up box model (you all know the one I’m talking about)… we at last had an overarching term to discuss what was supported, what was new, what was ready for people to write articles and books about. Nobody’s going to buy a book that promises to teach them “CSS3 Selectors Level 3, Fonts Level 3, Writing Modes Level 3, and Containment Level 1”: that title’s not even going to fit on the cover. But if we wrapped up a snapshot of what’s current and called it CSS4… now that’s going to sell.

Can we show the CSS WG that there’s mileage in this idea and make it happen? Oh, I hope so. Because while the modular approach to CSS is beautiful and elegant and progressive… I’m afraid that we can’t use it to inspire junior developers.

Also: I don’t want this joke to forever remain among the top results when searching for CSS4

Running Code Over Time

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I’m posting this on the last day of 2019.  As I write it, the second post I ever made on meyerweb says it was published “20 years, 6 days ago”.  It was published on the second-to-last day of 1999, which was 20 years and one day ago.

What I realized, once the discrepancy was pointed out to me (hat tip: Eric Portis), is the five-day error is there because in the two decades since I posted it, there have been five leap days.  When I wrote the code to construct those relative-time strings, I either didn’t think about leap days, or if I did, I decided a day or two here and there wouldn’t matter all that much.

Which is to say, I failed to think about the consequences of my code running over long periods of time.  Maybe a day or two of error isn’t all that big a deal, in human-friendly relative-time output.  If a post was six years and two days ago but the code says 6 and 1, well, nobody will really care that much even if they notice.  But five days is noticeable, and what’s more, it’s a little human-unfriendly.  It’s noticeable.  It jars.

As I mentioned in my comments on a repost last week, I work to try to make the things I publish to this site last. But that’s not to say that problems can’t creep in, either because of fundamental bugs left unnoticed until later on (such as the image recompression problem that’s recently lead to some of my older images going wonky; I’m working on it) or else because because of environmental changes e.g. in the technologies that are supported and the ways in which they’re used. The latter are helped by standards and by an adherence to them, but the former will trip over Web developers time and time again, and it’s possible that there’s nothing we can do about it.

No system is perfect, and we don’t have time to engineer every system, every site, every page in a way that near-guarantees its longevity; not by a long shot. I tripped myself over just the year before last when I added Content-Security-Policy headers to my site and promptly broke every embedded YouTube or Vimeo video because they didn’t fit the newly (and retroactively) enforced pattern of allowable content. Such problems are easy to create when you’re maintaining a long-running system with a lot of data. I’m only talking about my blog, but larger, older and/or more-complex systems (of which I’ve worked on a few!) come with their own multitudinous challenges.

That said, the Web has demonstrated a resilience that surpasses most of what is expected in consumer computing. If you want to run a video game from 1994 or even 2001 on a modern computer, you’re likely to find that you have to put in considerably more work than you would have on the day it was released! But even some of the oldest webpages still-existing remain usable today.

Occasionally, though: a “hip” modern technology without the backing of widespread browser standards comes along and creates a dark age. Flash created such a dark age; now there are millions of Flash-dependent web pages that simply don’t work any longer. Java created another. And I worry that the unnecessary overuse of front-end rendering technologies are creating a third that we’re living through right now, oblivious to the data we’re creating and losing.

Let’s think about longevity.

This Page is Designed to Last: A Manifesto for Preserving Content on the Web

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How do we make web content that can last and be maintained for at least 10 years? As someone studying human-computer interaction, I naturally think of the stakeholders we aren’t supporting. Right now putting up web content is optimized for either the professional web developer (who use the latest frameworks and workflows) or the non-tech savvy user (who use a platform).

But I think we should consider both 1) the casual web content “maintainer”, someone who doesn’t constantly stay up to date with the latest web technologies, which means the website needs to have low maintenance needs; 2) and the crawlers who preserve the content and personal archivers, the “archiver”, which means the website should be easy to save and interpret.

So my proposal is seven unconventional guidelines in how we handle websites designed to be informative, to make them easy to maintain and preserve. The guiding intention is that the maintainer will try to keep the website up for at least 10 years, maybe even 20 or 30 years. These are not controversial views necessarily, but are aspirations that are not mainstream—a manifesto for a long-lasting website.

This page is designed to last, too. In fact, virtually every post of any type I’ve made to this blog (since 2003, older content may vary) has been designed with the intention that it ought to be accessible without dependence on CSS, Javascript, nor any proprietary technology, that the code should be as human-readable as posssible, and that the site itself should be as “archivable” as possible, just as a matter of course.

But that’s only 15 years of dedicated effort to longevity and I’ve still not achieved 100% success! For example, consider my blog post of 14 December 2003, describing the preceeding Troma Night, whose content was lost during the great server failure of July 2004 and for which the backups were unable to completely describe. I’m more-careful now, with more redundancies and backups, but it’s still always going to be the case that a sufficiently-devastating set of simultaneous failures could take this content away. All information has fragility and we can work to mitigate it but we can never completely solve it.

The large number of dead outbound links on the older parts of my site is both worrying – that most others don’t seem to have the same level of commitment to the retention of articles on the Web – and reassuring – that I’m doing significantly better than the average. So next, I guess, I need to focus my attention – like Jeff is – on how we can make such efforts usable by other people, too. The Web belongs to all of us, after all.