Thursday, 29 July 2010

Lies, damned lies and the dubious world of cosmetics advertising

Let's face it, most people's ability to analyse statistics is pretty poor. In fact we can consider ourselves lucky if we know anything beyond mean, median, and mode, and certainly left- and right-skewing isn't a popular topic of conversation. Perhaps that's why the multi-billion pound global beauty industry uses such bizarre examples in their advertising, on the grounds that few punters will understand any of it. Not being a regular reader of women's magazines most of what I pick up is via flicking between TV channels, occasionally spotting some famous actress or supermodel accompanied by such interesting statements as '83 out of 114 women agree' (although I made that one up).

Isn't it fairly obvious that there are two concerns here? Firstly, the figures aren't easy to simplify to lowest common denominators, lacking the nice, rounded character of say, 80 out of 120. Secondly, the numbers are so small. Following the MMR scandal and its case study group of 12, surely few could think such a low sampling as my fictional 114 could be taken as a worthwhile trial? Yet I cannot think of a single example from this sector where the study (if we can call it that) exceeded 200. Are the numbers parts of some elaborate in-joke by the cosmetics industry or are they based on genuine data, in which case are the polls conducted by marketing agencies with very short attention spans?

Despite recommendations that the UK's Cosmetics, Toiletries and Perfumery Association members are meant to adhere to, outsider knowledge of what the beauty product multinationals get up to is minimal. Most companies test their products on other animals before moving onto humans, but how scientific is the research conducted on the latter? If the advertising figures are based around how punters ‘feel' (surely a profoundly subjective word), there is more than a hint that the research hasn't involved standard scientific procedures such as double-blind or placebo experiments.

And of course, no information is given as to where the punters were found: in statistical terms, how random was the sampling frame? So despite the sophisticated research that often goes into developing the products, their marketing appears to offer the antithesis in the form of essentially worthless polls and neo-scientific yet nonsensical compound words. Even innocent-sounding phrases such as "natural looking skin" aren't worth anything; after all, isn't all skin natural looking if it is free of make-up and cosmetic surgery? A combination of genetics and lifestyle - I really hate that last word - are responsible for the condition of your skin, with few people nowadays failing to recognise that sunbathing smokers are unlikely to retain a youthful complexion even with the aid of pots of ground up chicken feet and the food of queen bees.

That the product manufacturers have kept one step ahead of the cynicism is perhaps not all that difficult to explain. Our popular culture and media are obsessed with youth (which is nothing new - take classical Greece as an example) but at least modern legislation prevents the use of obviously insane ingredients. After all, it is far less than a century since radium was used in hair cream and toothpaste. It seems we may have slightly less gullibility than previous generations, yet even a temporary improvement in our appearance is inviting enough to fork out vast sums of money for.

But is all this about to change? In the last few years a radically different range of beauty products has been in development that appears to be rather more than usual temporary Polyfilla. Trials are taking place involving skin cream that may be an early form of "cosmeceutical", able to restore the structure of skin rather than simply obscuring aging and damage. As for me, I'm watching with interest the research into mimicking the effect of enzymes that prevent loss of hair colour - or even reverse it. What, vain? Me? Surveys suggest that only 1 in 10 men don't mind the natural greying process. Okay, I made that one up too!

Tuesday, 29 June 2010

How to look smart: textiles with intelligence

Although cybernetics, the truly personal interfacing of man and machine, has long been discussed in both fact and fiction, far less attention has been paid to futuristic clothing, Star Fleet velour and shiny foil suits aside. The past decade has seen a proliferation of technologies aimed at developing clothing that does more than just provide comfort and display. The creation of smart textiles that react to both external environmental factors and the wearer's body promises a wide range of uses, from health and medicine, via sports, to ultra-portable information technology.

In 2008 the smart fabrics industry in the European market alone was estimated to be worth over three hundred million Euros. To this end, the European Union created a research cluster with the quasi clothes-related if slightly tortuous acronym SFIT, or Smart Fabrics, Interactive Textile. With a growth rate forecast at 20% per year the sector shows great promise - and how much of it will revolve around consumerist infotainment gadgetry is anyone's guess. As an example of what is already available, the British company Peratech produces a wide range of electro-conductive smart fabrics under the Elektex banner. MP3 players and BlueTooth devices are amongst those incorporated into their clothing, and I assume it won't be too long for some form of television or viewing capability is built in, perhaps utilising sunglasses or head-up display technology.

The increasing miniaturisation of electronics and materials in general will undoubtedly lead to clothing and accessories constructed of elements arranged at a nano level. Recent developments in computer interfacing, such as the roll-up keyboard, suggest it may not be too long before people are wearing items more intelligent than they are (although in many cases that wouldn't be too difficult!) Much has been written about technology at the nano scale, including research into creating nano-bots that can be injected into the human body to destroy infections or fatty deposits. At a rather less invasive level, it is easy to see that smart fabrics could be developed for the slow release of pharmaceuticals or to monitor heart rate, respiration etc. The New Zealand company Zephyr have already developed two products: the kinky-sounding bio-harness and the shoe pod, both containing sensors woven into the textile. When combined with data storage components the products can record physiological information. No doubt the military are keeping as keen an eye on these developments as much as professional sports concerns.

Speaking of the armed forces, in February this year the UK's Ministry of Defence awarded a research grant to the British firm Intelligent Textiles Limited with the aim of developing fabrics that could back up if not replace military field equipment such as radios. Combined with innovations such as the aforementioned roll-up keyboard it seems strange how late has attention been paid to these developments. Clearly, there are benefits for many areas, although whether companies will persuade their executives to include such items in their travel luggage may appear a step too far in the work-life balance threshold.

Back on the health front, the simplest use of smart materials may be fabrics able to aid allergy sufferers, or at least warn them of impending doom (I would dearly love a built-in pollen detector!) Research is also being carried out into fabrics that change colour if they reach a pre-set level of ultraviolet radiation exposure within a time limit; clothing with this non-permanent photo chromic technology might prove to be of immense value to the Australasian market, with the southern ozone hole predicted not to heal for at least half a century.

One area you might expect to see high-tech developments, that of astronaut clothing, has received relatively little public attention apart from EVA (i.e. spacewalk) suits. In the 1970s the Soviet Union developed the elasticated Penguin suit to help cosmonauts exercise their otherwise wasting muscles on long-duration flights. A more high-tech approach is now being developed since the European Space Agency engaged the Danish firm Ohmatex last year to design and manufacture a 'smart sock' to monitor muscle activity via built-in sensors.

Another European venture is the international Biotex project, which aims to develop fabrics with built-in biosensors that can analyse the pH levels and mineral balance of the wearer. One civilian use would be analysis of energy expenditure, extremely useful for those on diets - as in, yes, you can have another chocolate biscuit, you've used up extra calories today. Indeed, the American NuMetrex range of clothing already has something along these lines, along with heart rate and pulse monitors, although from what I've read they are as yet of more use to healthy people than those with cardio-vascular conditions.

On a slightly more esoteric note, transatlantic research teams involved in the recent 2010 Congress of the Humanities and Social Sciences have developed a concept for interactive clothing that responds to the wearer's emotional as well as physical state. The Wearable Absence project aims to deliver complex, personalised audio-visual content when certain physiological conditions are met. Although early days, this could prove to be incredibly useful technique for therapy on the move.

However, it is not all plain sailing for the smart textiles industry: recent studies have suggested that certain smart materials incorporated into clothing, from the tiny silver particles used in anti-odour socks to more exotic substances such as carbon nanotubes, may pose long term health or environmental risks. There have even been discussions in the European Parliament Environment Committee for a ban on some of these materials as part of a wider interest in their adoption in various types of consumer goods.

But ultimately, smart materials are just too good to be abandoned altogether, even if there is a multitude of teething problems ahead. But once these issues are ironed out (geddit?) many of us will no doubt wonder how we ever managed to live without clothes that could power our personal entertainment and phone devices, supply satNav data, monitor our vital signs, offer emotional support in times of stress, and be of course completely self-ironing.

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Monday, 24 May 2010

Come fly with me: private industry and future of manned spaceflight

As Major Tim Peake undergoes training as the first British citizen to join the European Space Agency's (ESA) Astronaut Corps, it's an interesting time to consider to what extent manned spaceflight will migrate from the state to private sector over the next decade or two. With the International Space Station (ISS - you can see the acronyms mounting) soon to be without the shuttle fleet, not to mention short of an emergency escape vehicle following on-again/off-again Crew Return Vehicle projects, some form of return to earth vehicle will surely be needed. Back in the 1980s at least one Soviet cosmonaut is supposed to have required a prompt return to Earth following a medical problem, but the ISS crew is too large to squeeze into a single venerable Soyuz ferry. It looks like NASA has managed to resurrect the Orion Crew Exploration Vehicle as a lifeboat, eventually…but in the meantime, will the ISS be forced to look to the private sector?

The current centre of attention as far as private manned spaceflight goes is Richard Branson's Virgin Galactic, with its $200,000 price tag for a suborbital hop in a SpaceShipTwo. The flight plan is nothing new - NASA's first two astronauts did something similar nearly half a century ago - but for a private company to achieve this is, or rather will be, astonishing. Any attempt to compare the development of spaceflight to commercial air travel is a failure: the differences in scale and logistics are too profound to allow any meaningful comparison. The margins for error are that much smaller with spaceflight, and whilst the cost of astronaut training is considerable, the cost of a space vehicle that much more. Unfortunately, and ironically, the success of science fiction has led to a widespread ignorance concerning the practicalities and dangers facing astronauts. For example, low Earth orbit has the mounting danger of man-made junk and debris, ranging from lost tools to frozen ejected fecal matter, with estimates for 'detectable' objects alone put at 10,000. According to NASA, this constitutes a 'critical level' of debris. One Soyuz mission in the 1980s suffered minor impact damage to a window, although this could have been a micrometeroid rather than man-made. Nonetheless, seeing as Star Trek deflectors aren't yet fitted as standard, at some point someone is presumably going to have start clearing up this mess.

In variance to Western capitalists looking to make commercial achievements in the human spaceflight sector (unlike say the existing success with communications and other unmanned satellites), both China and India are developing state-led programmes. The first Chinese manned spacecraft, a souped-up Soyuz clone, launched in 2003, whilst the Indian Space Research Organisation (ISRO) plans, with Russian aid, to launch its first astronauts circa 2015. Whether politics and national pride will push American and European entrepreneurs to compete is open to question, but it's possible they will sit alongside raw commercialism as a driving force, with science taking a poor fourth place. Then again, President Obama's speeches have contained arguments along just these lines. Following on from the 2004 Commercial Space Launch Amendments Act, NASA instigated several ISS-orientated programmes such as Commercial Orbital Transportation Services (COTS) and Commercial Resupply Services (CRS), the intention being to free NASA from mundane day-to-day operations thus leaving more resources for R&D (research and development, if you weren't sure). Although initially intended to be cargo craft only, the potential for private sector crewed spacecraft, such as the SpaceX Dragon, is seen as the obvious next step. The problem is that some of the potential private contractors have very little experience of space operations. Or indeed, none. For every Boeing or Lockheed Martin there are an awful lot of small companies looking for a piece of orbital pie; if the success rate matches that of earlier attempts, there are going to be a lot of aerospace corporations filing for bankruptcy.

As early as the 1970's private companies attempted to build satellite launchers, such as OTRAG (go on then: Orbital Transport und Raketen AG, if you must know), only to founder due to technological difficulties, funding shortfalls and political pressure. More recent failures include the now defunct Rotary Rocket company's Roton crewed transport, and NASA's dropping of Rocketplane Kistler in 2008, but in these cases the lack of technical success was the primary cause. It would appear the future, at least for the USA, lies in cooperation between state and industry. Whether the latter will gain riches from microgravity research in pharmaceuticals and smart materials remains to be seen; as Carl Sagan once argued, many of the so-called Apollo breakthroughs could have probably been made for far less money than was spent on the moon landing programme. Perhaps a decline in fossil fuels may lead to new exotic energy projects, such as the mining of lunar helium-3, but the global economy may have to be on much more steady footing for anything as epic as this to be considered. Otherwise it's difficult to identify just where a private contractor could be certain of potential returns from manned spaceflight. Perhaps Richard Branson's quick thrills approach may be the best bet for now!

But are there any indicators as to what the near future might hold? SpaceX Dragon and the recently curtailed Orion are both conventional capsule designs. More advanced projects such as the (initially unmanned) Lockheed Venture Star were cancelled due to difficulties with the engine design, perhaps a primary reason for NASA deciding to play it safe with the Constellation programme's Orion and the Altair lunar lander. Speaking of the latter, President Obama's speech earlier this year placed human expeditions to the moon and Mars in the 2025-2030 time bracket, a safe distance from his White House tenure. I seem to recall all US presidents since, and perhaps including, Reagan, have taken a pot-shot at a manned Mars mission (acronym: mmm - speaks for itself, really.) I would take any such timescale with a large pinch of salt. Admittedly, Obama has proposed large budget increases for NASA, guaranteed to generate more than 2,500 jobs in Florida alone. But like many aspects of the Soviet Union's Five Year Plans, is the intention to promote economic growth, the outcome of the projects themselves being on secondary importance? US presidents of the past few decades have not exactly been known for their scientific acumen. Competition between private companies is an ideal way of generating R&D whilst minimising tax payers' investments, but if these corporations don't succeed in establishing a comprehensive level of interaction with NASA there could be trouble afoot. After all, it isn't so many years since a software contractor mixed up imperial with metric units, causing the in-flight loss of the Mars Climate Orbiter.

One potential benefit of increased manned space travel that has been advanced by both the White House as and NASA is the promotion of spaceflight to the general public. With digital entertainment and web empowerment, along with environmental and economic concerns, having taken centre stage in the minds of the post-Apollo generations, an increase in space tourism may have greater impact on the public than the lacklustre coverage of the ISS. If Virgin Galactic can pull off it's enterprise (N.B. that's a joke - the first Spaceship Two will of course be named VSS Enterprise), then perhaps spaceflight will become cool again. This in turn may inspire a new generation of engineers and designers, especially to seek much-needed alternatives to fossil fuels. In an idea reminiscent of Arthur C. Clarke's children's novel Islands in the Sky, last year the brewery company Guinness announced a competition prize of a seat on a Virgin Galactic craft. So although it may be a far cry from the Pan Am Orion spaceplane in 2001: A Space Odyssey, nonetheless it's very much a case of "watch this space..."

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Sunday, 2 May 2010

Scary Soap and Worm World: science toys for the young and not so young

There have been junior versions of telescopes, microscopes, and chemistry sets available for many years, but the past decade or so has seen a veritable explosion of science-orientated items for both children and the young at heart. It isn't just the likes of the Science Museum shop either: online retailers in particular offer a profusion of activities and experiments, ranging from extremely expensive assembly kits to grow your own crystal sets for under £10.

One of the interesting aspects to all this merchandise is how much of it follows a clear gender demarcation - 'disgusting' science for the boys versus perfume, incense and DIY toiletry products for the girls, with the stereotypical packaging pushing the delineation home. Although there are some products not for delicate (the bottom burp machine springs to mind), and a few of rather dubious taste such as soft toys shaped like E. Coli or the Ebola virus, there is an enormous array of items that promote science-based learning whilst providing lots of fun.

It isn't just inanimate activities that are available, but an increasingly range of experiments involving real animals. From Worm World via butterfly terrariums to ants in gel (based on a real Nasa experiment), children are now able to play biologist, farmer, even God, to a variety of creatures. The only project I have had direct experience of raised some interesting questions, as all good experiments should. As a starting point I had to consider my own relation to the project, since I'm not particularly keen on animal experimentation except as an absolute necessity; I was therefore fairly pleased to see that the instruction manual stated the creatures should be treated carefully, being after all living things. In the planning stages I also discovered a small but international community with a passionate dedication to their animals, but where for many the line between pet and subject lies, I'm still uncertain.

The species involved is intrinsically interesting due to its longevity: forget the coelacanth, if you really want to see a living fossil - in the form of an animal that has barely changed its external morphology in eons - then look to Triops longicaudatus, a freshwater shrimp that has been found fossilised in seventy million-year old rocks from the late Cretaceous. The shrimp-rearing products are marketed under a variety of names such as Triassic Triops (inaccurate - it is an even older sister species T. cancriformis that has been around since the Triassic), Dinosaur Shrimp (some fairly obvious marketing there), even Star Wars Naboo Sea Creatures!

Most kits consist of the same basic components: eggs (including those a few other, smaller, marine invertebrates), food, a container, and accessories. Unlike their smaller, commercially-available, crustacean cousins known as sea monkeys (actually brine shrimp), Triops even appear to exhibit signs of individualism, bizarre as it sounds for virtually blind creatures with a dust mote-sized brain. So although the kits are marketed at children over six years old, supposed adults such as me quickly find ourselves caught up in their well-being. In fact, the ability to raise and nurture the wee beasties is rather more complicated than the instructions would have you believe. A combination of light, temperature, oxygen and the right sort of water (distilled/deionised for hatching; bottled mineral water for adults) are merely the start of something that drove me to exactitudes not seen since school chemistry lessons. Unfortunately, this left my children with a somewhat backseat role, simply adding the food and observing with magnifying glasses through the increasingly murky water.

Of course engaging children in raising triops is good practice for said chemistry lessons, not to mention introducing them to the fundamentals of biology. Unlike some of the sad stories I discovered from other customer reviews, we did manage to raise three shrimps from egg to adult, although they all died around three weeks old (of a potential average seven- to ten-week lifespan). The project inspired questions concerning birth, reproduction - which is complex with triops and their female-biased or hermaphroditic populations - and death, in addition to providing examination of a miniature ecosystem and its food chain, daphnia being the rapidly-consumed base. One interesting outcome of all this was that it suggested youngsters (human, not shrimp) are not innately endowed with empathy, since my seafood-loving children asked if they could eat their pets after they died. Admittedly, they asked this before the animals were born, not after their death.

Although one individual died from moulting complications (despite a futile last-minute addition of iodine to the tank), there were no observable causes for the others' deaths, leading me to investigate optimal conditions in greater detail. However, I found it difficult to get agreement on even fundamentals such as the best water temperature and type of light cycle. The one book I could find (all of 30 or so pages long) doesn't go into details on raising them, whilst the most authoritative-sounding material elsewhere seems to negate the creature's 'wild' existence in many respects: after all, if their long-dormant, desiccated eggs come to life after a desert rain shower, then might not the night sky be dark due to rain clouds? Yet experienced breeders recommend 24-hour light for at least the first three days. It isn't just the minor carbon footprint of leaving an angle poise lamp on for days on end, but constant light leads to algal growth which clouds the water and may have other side effects. Clearly, those interested in breeding triops could benefit from rather more experimentation, since my children and I are hardly up to the role!

Interestingly, the only professional experiment reports I could find seemed more in the vein of the archetypal crazy scientist (think Dr. Bunsen Honeydew on The Muppet Show or The Fast Show's Professor Denzil Dexter: "We took some Triops eggs and froze them, but they still hatched, so then we boiled some more, and they hatched too. Then, when they were adults, we tested oxygen levels by super-gluing their carapaces…") I'm sure you get the picture. It has to be said that triops are useful experimental subjects for a variety of important reasons, from the here and now of fighting tropical diseases to the future of long-duration manned spaceflight involving astronaut hibernation. And if like me you're interested in trilobites, I think they're next best thing since the Permian extinction robbed us of those creatures some 251 million years ago. But as for "triops are instant pets - just add water" - that has to be a major understatement, and then some...

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Thursday, 15 April 2010

In thrall to the machines: Or how to open a packet of biscuits

It says 'Tear here' so I gently pull the red strip, ripping a ragged diagonal line in completely the wrong place. More pulling and the shiny material shreds into a dozen thin strips, dislodging crumbs. A bit more and the top third suddenly rips off the packet, causing biscuits to cascade into the tin. So much for following the instructions. Then why did I tear here? Because it told me to, along with all the 'Lift this flap', 'Open other end' and numerous additional petty directives that rule the lives of us consumers.

Einstein has been quoted as saying "It has become appallingly obvious that our technology has exceeded our humanity." I'm not sure that this wasn't his response to nuclear weapons and Mutually Assured Destruction, but are we as some commentators suggest in danger of becoming a variant of the degenerative, docile Eloi in H.G. Wells' The Time Machine? From birth we are brought up to obey a myriad of procedures that give the appearance of improving our quality of life but have their rationale in manufacturing efficiency and the corporate balance sheet, locking us into a sophisticated socioeconomic profile that overrides individualism. Until the machines we increasingly rely upon achieve a much more sophisticated level of communication, are we are instead instructed to think in machine-like ways to achieve a viable interface? If so, at what cost to fundamental human traits such as initiative? Essentially, were the blank-faced bureaucrats of 2001: A Space Odyssey a more accurate prediction than Arthur C. Clarke's technophiliac Profiles of the Future?

Lest I sound like a socialist luddite, I have to admit to both utilising and enjoying much of the digital technology on offer, but as a means to an end, not an end in itself. And I only go so far - no Bluetooth headset for me! But then I also don't have a Wii, Playstation, DS, wall-mounted flatscreen television, Blueray DVD…yet I don't think I'm missing out on anything. But then I also don't consider it necessary to spend my time on public transport telling friends over the phone that yes, I'm on public transport!

The gee-whiz factor of bigger, faster and louder associated with the macho 'hard' technology of industrialisation has been largely superceded by digital and virtual technology that appeals to both genders. The irony is that whilst the latter is alleged to promote empowerment of the individual, we are in many ways just as subservient to the manufacturing corporations as ever. Where and when devices and software become available are driven by economic factors such as long-term release cycles, meaning upgrades appear staggered over a year or so rather than clumped together in a single update. So far this has done little to abate the enthusiasm for digital communications, entertainment, and navigation technology, despite the impact on consumer debt and the enormous amount of time spent continually learning how to use it all. (I'm not a violent man, but in my opinion most instruction manual authors should be strangled at birth).

But then it is astonishing how fast items such as mobile phones have been taken up by the general public for leisure use, much to the surprise of manufacturers who initially assumed a business-orientated user model. The proliferation of non-core functions has shown that most people find it easy to assimilate cutting edge technology, despite remaining as in the dark as ever regarding the varied theoretical and practical underpinnings. Surely there must be a danger in increasingly placing more and more of our daily lives in the hands of the few who sell us the hardware and software, whilst having no idea how any of it works?

A major cause for concern, as always, is that this ignorance has allowed the proliferation of scare-mongering stories concerning potential health hazards. As far as I am aware, drivers using mobile phones are in far greater danger than the average user is from the radiation emission, yet the debate continues. And speaking of vehicles, the fallibility of satellite navigation devices has yet to be properly addressed, despite police warnings. Drivers seem frequently to be so subservient to their satnav as to leave all common sense behind, as I found to my cost when an articulated lorry driver followed the directions for a shortcut down my obviously too narrow residential street and promptly wrote my car off. The over-reliance on devices or software can also lead to problems if there is not a non-digital back-up. I remember some years ago visiting a branch of a well-known restaurant chain whose staff utilized electronic ordering pads: due to a software failure they were having to work with old-fashioned pencil and paper, leading to a 45 minute backlog for diners. Clearly, basic arithmetic isn't the only skill to suffer these days!

The fact that extremely fine motor skills are usually essential for effective operation of computer and other interfaces, screen readers not withstanding, is frequently overlooked. This, as much as technophobia, can prove a fundamental stumbling block to the elder generations who are encouraged to join the 'online community' or suffer ostracism. But then however good it may be for someone who is infirm or housebound to have a webcam/Skype or even an internet connection, nothing can wholly substitute for direct face-to-face interaction. Indeed, are today's children growing up lacking (even more) social niceties, having largely replaced personal interaction with digital proxies such as texting and social networking websites? I suppose the proof will be in the next few years when the first wholly-immersed such generation reach adulthood...

The development of Web 2.0 technologies, whereby the internet becomes a two-way interface, is a powerful tool for human interaction and grass-reports campaigning, and certainly one of the best things to come out of the digital revolution. But the sheer speed of the paradigm severely limits error-checking, leading to a vast amount of noise and thus sensory overload and overproduction of information. The slick multi-media presentation of information on the web can appeal far more, especially to children, than the old-fashioned printed word, which can lead to a lack of critical thinking. After all, if it looks pretty and sounds good, then surely it must be true? There have always been errors in text books and science popularisations, but the self-proofing of Web 2.0 material can only be worse by several degrees of error. As yet the delivery technology is far superior to the ability to quality control the content. Whether the ease of access to content outweighs the shortcomings is another area that will no doubt receive a great deal of attention in the next few years, from educationalists and parents alike.

Clearly, the future for humanity lies with a post-industrial society (as per Alvin Toffler's The Third Wave), wherein information and virtual products are at least as important the material world. But with high technology in the hands of powerful multinational corporations and public knowledge largely restricted to front-end user status, we face a serious possibility of losing social and cognitive skills as more aspects of our lives become inextricably bound with the wonderful worlds of electrons and silicon. As for any Second Lifers out there, I'll save virtuality addiction for another time...