Internet memory holes and filter bubbles O NOEZ!!1

Paul Raven @ 15-07-2011

Ah, here we go again – another study that totes proves that the intermawubz be makin’ us dumb. Perfect timing for career curmudgeon Nick Carr, whose new book The Shallows – which is lurking in my To Be Read pile as we speak – continues his earnest handwringing riff over our inevitable tech-driven descent into Morlockhood

Human beings, of course, have always had external, or “transactive,” information stores to supplement their biological memory. These stores can reside in the brains of other people we know (if your friend John is an expert on sports, then you know you can use John’s knowledge of sports facts to supplement your own memory) or in storage or media technologies such as maps and books and microfilm. But we’ve never had an “external memory” so capacious, so available and so easily searched as the web. If, as this study suggests, the way we form (or fail to form) memories is deeply influenced by the mere existence of external information stores, then we may be entering an era in history in which we will store fewer and fewer memories inside our own brains.

Do we actually store fewer and fewer memories, though? Or do we perhaps store the same amount as ever, while having an ever-growing external resource to draw upon, making the amount we can carry in the brainmeat look small by comparison to the total sphere of human knowledge, which is still growing at an arguably exponential rate? Or, to use web-native vernacular: citation needed. (If you can’t remember where you saw your supporting evidence, Nick, feel free to Google it; I won’t hold it against you.)

If a fact stored externally were the same as a memory of that fact stored in our mind, then the loss of internal memory wouldn’t much matter. But external storage and biological memory are not the same thing. When we form, or “consolidate,” a personal memory, we also form associations between that memory and other memories that are unique to ourselves and also indispensable to the development of deep, conceptual knowledge. The associations, moreover, continue to change with time, as we learn more and experience more. As Emerson understood, the essence of personal memory is not the discrete facts or experiences we store in our mind but “the cohesion” which ties all those facts and experiences together. What is the self but the unique pattern of that cohesion?

I submit that we form similar consolidations on a collective basis using the internet as a substrate; hyperlinks, aggregation blogs, tranches of bookmarks both personal and public. I further submit that this makes the internet no different to a dead-tree library except in its speed, depth and utility. This puts the internet at the end of a millennia-long chain of inventions that begun with cave-paintings and written language, all of which doubtless provoked sad eyes and headshaking from those who didn’t have a chance to grow up around them. It’s not the internet Carr fears, it’s change.

I’m usually very keen on Ars Technica‘s reporting on science papers, but there’s a glaringingly bad bit in the second paragraph of their piece on this one:

The potential to find almost any piece of information in seconds is beneficial, but is this ability actually negatively impacting our memory? The authors of a paper that is being released by Science Express describe four experiments testing this. Based on their results, people are recalling information less, and instead can remember where to find the information they have forgotten.

The authors pose one simple example that had me immediately agreeing with their conclusions. Test yourself: how many countries have flags with only one color? Regardless of your answer, was your first thought about actual flags, or was it to consider where you would find that information? Without realizing it (even though I knew the content of the paper), I found myself mentally planning on opening up my Web browser and heading for a search engine.

So a guy who writes articles for publication on the web, and presumably does much of his research using the internet too, is shocked to find his first response to a question he doesn’t immediately know the answer to is “hey, I wonder how I can Google this?” – is that really a surprise? As a former public library employee, my response would probably have been to wonder whereabouts to look in the stacks for the same information; reliance on what we might call “outboard” cultural memory storage is hardly a new thing. And unless you’re in the business of needing to be able to recall trivia without recourse to reference material – like a career pub-quiz participant, perhaps – I remain to be convinced that this is a drastic new failure condition that threatens the downfall of civilisation.

Indeed, a MetaFilter commenter recalls a Richard Feynman anecdote from a year when he was lecturing in Biology that illustrates the point very effectively:

The next paper selected for me was by Adrian and Bronk. They demonstrated that nerve impulses were sharp, single-pulse phenomena. They had done experiments with cats in which they had measured voltages on nerves.

I began to read the paper. It kept talking about extensors and flexors, the gastrocnemius muscle, and so on. This and that muscle were named, but I hadn’t the foggiest idea of where they were located in relation to the nerves or to the cat. So I went to the librarian in the biology section and asked her if she could find me a map of the cat.

“A map of the cat, sir?” she asked, horrified. “You mean a zoological chart!” From then on there were rumors about some dumb biology graduate student who was looking for a “map of the cat.”

When it came time for me to give my talk on the subject, I started off by drawing an outline of the cat and began to name the various muscles.

The other students in the class interrupt me: “We know all that!”

“Oh,” I say, “you do? Then no wonder I can catch up with you so fast after you’ve had four years of biology.” They had wasted all their time memorizing stuff like that, when it could be looked up in fifteen minutes.

Reliance on the memorisation of facts in preference to the more useful skills of knowing how and where to find facts and how to synthesise facts into useful knowledge is a common criticism of the education system here in the UK, and in the US as well. Facts are useless in and of themselves; as such, we’d be better off reassessing the way we teach kids than angsting over the results of the current (broken) system. As Carr points out, the connections we make between facts are the true knowledge, but he discounts those connections as soon as they are made or stored in the cultural sphere rather than the individual mind. That’s a very hierarchical philosophy of knowledge… which might explain Carr’s instinctive flinching from the ad hoc and rhizomatic structure of knowledge as stored on the internet. Don’t panic, Nick; the libraries aren’t going to get rid of the reassuringly pyramidal cataloguing systems any time soon. (Though I wish more of them would allow folksonomy tagging on their catalogue interfaces; best of both approaches, you dig?)

Another of the more persistent Rejectionista riffs is on the rise again, courtesy of Eli Pariser’s new book, The Filter Bubble. You know the one: confirmation bias! The internet makes it way too easy to ignore dissenting viewpoints! OMG terrible and worsening partisan schism in mass culture! (I have to admit that I suspect this riff is a symptom of continued American soulsearching about the increasing polarity of the political sphere; it’s a genuine and increasingly worrying problem, but it ain’t the fault of the intermatubes.)

There are numerous lionisings of and rebuttals to Pariser, if you care to Google them – amazingly enough, and very contrary to Pariser’s own thesis, both types of response appear in the same search for his name… even when searching using my Google account with its heavily customised results!. But I’ll leave you with some chunks from Jesse Walker’s riposte at Reason, which I found via Roderick T Long:

Pariser’s picture is wrong, but a lot of his details are accurate. Facebook’s algorithms do determine which of your friends’ status updates show up in your news feed, and the site goes out of its way to make it difficult to alter or remove those filters. Google does track the things we search for and click on, and it does use that data to shape our subsequent search results. (Some of Pariser’s critics have pointed out that you can turn off Google’s filters fairly easily. This is true, and Pariser should have mentioned it, but in itself it doesn’t invalidate his point. Since his argument is that blinders are being imposed without most people’s knowledge, it doesn’t help much to say that you can avoid them if you know they’re there.)

It is certainly appropriate to look into how these new intermediaries influence our Internet experiences, and there are perfectly legitimate criticisms to be made of their workings. One reason I spend far less time on Facebook than I used to is because I’m tired of the site’s hamfisted efforts to guess what will interest me and to edit my news feed accordingly. Of course, that isn’t a case of personalization gone too far; it’s a case of a company thatwon’t let me personalize as I please.


Pariser contrasts the age of personalization with the days of the mass audience, when editors could ensure that the stories we needed to know were mixed in with the stories we really wanted to read. Set aside the issue (which Pariser acknowledges) of how good the editors’ judgment actually was; we’ll stipulate that newspapers and newscasters ran reports on worthy but unsexy subjects. Pariser doesn’t do the obvious next step, which is to look into how much people paid attention to those extra stories in the old days and how much they informally personalized their news intake by skipping subjects that didn’t interest them. Nor does he demonstrate what portion of the average Web surfer’s media diet such subjects constitute now. Nor does he look at how many significant stories that didn’t get play in the old days now have a foothold online. If you assume that a centralized authority (i.e., an editor) will do a better job of selecting the day’s most important stories than the messy, bottom-up process that is a social media feed, then you might conclude that those reports will receive less attention now than before. But barring concrete data, that’s all you have to go by: an assumption.

And in that paragraph I think we see the reason that Rejectionistas like Carr and Pariser get so many column-inches in mainstream media outlets in which to handwring: because the editors who give them the space still feel that filtering is something that they should be doing on behalf of their readers, who are surely too stupid to chose the right things.

Given current newsworthy events, I think that’s an attitude which – no matter how well-meaning – needs to be challenged more, not less; if the choice is between applying my own filters or allowing someone whose motivations are at best opaque and at worst Machiavellian and manipulative to do the filtering for me, well… you’ll be able to find me in my filter bubble.

Don’t worry, I’ll see you when you arrive; its walls are largely transparent. Believe it or not, some of us actually prefer it that way. 😉

Trust and utility

Paul Raven @ 24-02-2011

This Freeman Dyson article/review at the New York Review Of Books has many interesting points in it, and the new James Gleick book it discusses sounds like a title I’ll need to get my hands on at some point (his biography of Richard Feynman is a fascinating work). But there was a pair of sentences that really just leapt out at me, and I offer them here without further comment (but with a little emphasis):

Among my friends and acquaintances, everybody distrusts Wikipedia and everybody uses it. Distrust and productive use are not incompatible.

Wired suggests supplementary skill-sets for the 21st Century

Paul Raven @ 28-09-2010

Dovetailing rather neatly with Kevin Kelly’s piece on technological literacy last week, Wired has an oddly-formatted but provocative piece that they’ve entitled 7 Essential Skills That You Didn’t Learn In College. Those seven skills are:

All fairly pertinent, and very Futurismic as well… though I’m not sure how “essential” the remix culture aspect is. I’m inclined to think – perhaps uncharitably – that anyone aspiring to be an artist or creator who hasn’t already grasped those basic truths by observing the world around them is never going to get it, no matter how clearly you spell it out for them. Am I being unfair?

It’s a decent enough list, but not exhaustive by any means – what would you add to it? Or, equally, what would you remove?

The CSI Effect

Paul Raven @ 28-04-2010

Via BoingBoing, The Economist investigates the “CSI Effect” – the phenomenon whereby facts, falsehoods and mythinformation about criminal forensics procedures in entertainment media is hampering (and sometimes aiding) the detection and prosecution of real criminals.

… a new phrase has entered the criminological lexicon: the “CSI effect” after shows such as “CSI: Crime Scene Investigation”. In 2008 Monica Robbers, an American criminologist, defined it as “the phenomenon in which jurors hold unrealistic expectations of forensic evidence and investigation techniques, and have an increased interest in the discipline of forensic science.”


The most obvious symptom of the CSI effect is that jurors think they have a thorough understanding of science they have seen presented on television, when they do not. Mr Durnal cites one case of jurors in a murder trial who, having noticed that a bloody coat introduced as evidence had not been tested for DNA, brought this fact to the judge’s attention. Since the defendant had admitted being present at the murder scene, such tests would have thrown no light on the identity of the true culprit. The judge observed that, thanks to television, jurors knew what DNA tests could do, but not when it was appropriate to use them.

This sort of informational feedback loop happens in all sorts of places. I’m immediately reminded of the most common denigration of open-source software, namely that because anyone can download the code, anyone can work out how to compromise it. Of course, very few people do so… and proprietary software certainly isn’t immne from hacking, despite its closed nature. But is that because there’s less profit to be made from hacking Linux systems, as Microsoft advocates often suggest? Given the number of servers that run on *nix, I can’t believe it’s as clear-cut as all that.

But back to the forensics issue: the ‘open code’ of forensic science is helping some of the smarter criminals cover their tracks:

Criminals watch television too, and there is evidence they are also changing their behaviour. Most of the techniques used in crime shows are, after all, at least grounded in truth. Bleach, which destroys DNA, is now more likely to be used by murderers to cover their tracks. The wearing of gloves is more common, as is the taping shut—rather than the DNA-laden licking—of envelopes. Investigators comb crime scenes ever more finely for new kinds of evidence, which is creating problems with the tracking and storage of evidence, so that even as the criminals leave fewer traces of themselves behind, a backlog of cold-case evidence is building up.

Is there anything to be gained from trying to stem the flow of forensics knowledge out into the wider world? And if there is, how would one go about enforcing it?

Map of science

Tom James @ 26-05-2009

science_topic_mapSomething wonderful, not especially relevant to science fiction, but pretty and cool:

As to what the image depicts, it was constructed by sorting roughly 800,000 scientific papers into 776 different scientific paradigms (shown as red and blue circular nodes) based on how often the papers were cited together by authors of other papers.

Links (curved lines) were made between the paradigms that shared common members, then treated as rubber bands, holding similar paradigms closer to one another when a physical simulation forced them all apart: thus the layout derives directly from the data. Larger paradigms have more papers. Labels list common words unique to each paradigm.

It tickles my sensawunda node that we can now visualise our understanding of the physical universe in this way. Look at the map in close-up here.

You can see the great flowering coagulations of health, medicine, cell biology, and biochemistry. And brain research in the midst of a three-way tug-of-war between computer science, social science, and the study of the central nervous system (which is winning).

I wonder what this map will look like in a hundred years?

[image from Information Esthetics][via Eric Drexler]

Next Page »