Showing posts with label gripe. Show all posts
Showing posts with label gripe. Show all posts

Saturday, 5 September 2009

On: "The revolution will not be robotised" NewSci 29Aug09

p28 - Two page interview with Noel Sharkey (perhaps most famous for being a judge on BBC's "Robot Wars"). Or "Why AI is a dangerous dream" (online).

- Basically, he's sitting on the fence, saying that he needs to see proof of artificial sentience before he'll concede it's possible. He does at least give fair mention to the opposite side of the debate (Hans Moravec and Ray Kurzweil).

"The mind could be a type of physical system that cannot be recreated by a computer"

His sentence should use "in" in place of "by": A computer can no more create or be sentient(s), than can a calculator understand mathematics. It's a category error; computers are merely calculators by design. Artificial Sentience would come in the form of software running on a *very* powerful computer, or a radically different electronic architecture.

But he doesn't give any examples of systems than are fundamentally impossible to emulate on computers, or why they be so. Given the amazing accuracy of physics simulations (able now to simulate entire viruses from quantum mechanical subatomic upward), I think the burden of proof should be on the other foot. But proving that a real world system can never be simulated accurately would appear to be equivalent to proving it could never be scientifically defined or understood. Quite possibly a paradox; thus everything is computable (eventually).

He admits that his own work is on problems immediately solvable with AI; these systems truly are tailor made by clever humans to solve simple problems as reliably and predictably as possible. Hence they are brute force and dumb as possible. To attribute any/all successes of a creation to it's creator is clearly flawed though: The inventor or an electronic calculator can not claim to be able to immediate find the square root of any 12 digit number. Genetic algorithms, today, are consistently finding designs (for RF aerials, F1 car aerodynamics, traffic light systems) that their human creators would *never* have come up with (often utterly weird and counter-intuitive). I'm not saying, therefore, that a piece of code should be attributed the status previous granted to the human expert it has replaced. I'm saying that intelligence has never been what it's cracked up to be. I like the his quote from Marvin Minsky:

"AI [is] the science of making machines do things that would require intelligence if done by humans."

Much of the progress in 'AI' to date has been through reducing our over-estimation of the mental abilities of humans, rather than attaining this mythical quality we call "sentience".

- This is all fine if he's taking this standpoint purely as a means to an end: getting policy makers to treat the current generation of robots correctly. In my experience there is a lot of anthropomorphising of very dumb machines (even by roboticists/computer scientists, who should know better). This is merely evidence of humans' lack of intelligence, rather than any limitations on future machine intelligence, as Sharky would have it. People expect too much too soon, then too little further in the future (after short term over-optimism falls flat), because people have little/no intuitive understanding of the experiential nature of technological progress.

The experts may just be using language loosely or hyping up their creations, but this could lead to a climate of misunderstanding in those outside the domain of expertise. A strong sceptical voice might well be beneficial here, to help avoid detriment to humanity. Warfare is the most pressing issue:

Last millennium, the ethics of tactics in armed interventions (e.g. US's various wars: Vietnam, Iraq 1, etc) there has been a balancing act between minimising foreign civilian casualties, and minimising troop casualties. Shelling from a distance, of dropping bombs from on high keep your boys safe, but are significantly less discriminatory as to whom they kill. Homeland public opinion is naturally biased towards it's soldier's safe return, but there are also limits to how many collateral deaths are acceptable.

Contemporary military automation seems to be forging ahead towards zero coffins being flown home, but on the flip side is only aiming (at best) to be equally as competent as human soldiers are currently. It shouldn't be a question of whether a robotic sniper cut distinguish civilians for militants as capably as a trained person can?; we should be asking: is it really necessary to use deadly force at all, when it doesn't even keep our military personnel safer? It's no longer 1 life vs. X number of civilian casualties; with robotic troops, it's human casualties now have a direct market valuation ($X). This kind of thinking doesn't seem to factor into the arms industry's thinking enough yet. It may take a massive humanitarian outcry (from a home population) before policy makers take note.

- Elder care won't be a significant issue until anthropomorphised robots become a reality (decades off for many reasons). If the Elderly miss out on genuine human contact as a result of carer's jobs being taken over by robots, this is more likely to be a result of necessity; the 'baby boomers' will soon be reaching that age range, adding greatly to the growing burden of an ageing society.

- He has the “Robocup” example the wrong way around: robotics is utterly failing to match the coordination and finesse of human movement; kicking a ball accurately is a long way off (the latest Asimo can barely run on a perfectly flat surface). Strength and endurance are also major deficits of, would be, artificial players: there just aren't the materials technologies to match the combination of human muscles and biochemical energy reserves, honed over billions of years of evolution.

On the flip side, tactics are easier to define. Leaving aside the 'computer vision' systems necessary to operate a stand alone robot soccer player, I don't see any reason that an AI system could not soon obtain optimal tactics (player positioning wise) within the next 10 years, or less. This might well be achieved through a 'brute force' technique, i.e. evaluating the positions of players in every recorded football match available. More examples and detail than any human player or manager could ever hope to scrutinise. But why should this be assumed to be cheating?; in a person it would just be considered the advantage of experience.

Saturday, 15 August 2009

Beyond the Death of Silver Screen Space Operas


Contents:
1. Back to the Future Moon
2. Dystopia Blues
3. Other (space) Sci-fi Worthy of the Title
4. Back into Deep Space, TV and Further Discussions

== Back to the Future Moon ==

During a Facebook message thread, started (1.5 months ago!) on the topic of the new movie "Moon" (as yet still unseen by myself): I was whinging about the implausibility of of the setting and it's possible efficacy as pro human space-flight propaganda (when I consider any question of such pursuits moot). We started discussing a (potentially) similar movie and the genre in general. The following is a quote from one of my good friend's comments (my reply turned into this blog entry):

"I also thought Sunshine was a disappointment, but mostly because of the way the climax of the film declined into teen-slasher territory. Its important for sci-fi to be realistic enough to suspend disbelief, but I think any film ultimately has to make compromises with the story. That the idea of jump-starting the sun is preposterous to me doesn't make the film less interesting. Like all such films its about the journey rather then the destination."

I absolutely agree that it's entirely valid to have a major violation of reality (and any subsequent deviations that directly stem from that) in a movie (TV series or book), in order to explore another (entirely unrelated) topic.

My gripe is that no, so called, “sci-fi” films set in space have actual been about sci-fi since the early 70s, when there was a slew of them: “2001 a Space Odyssey”, Solaris, “Silent Running”, etc. Since then space has been used solely as an alternative backdrop for movies that I think belong more predominantly to other genres:
- Action blockbuster (Independence Day, Armageddon)
- Fantasy adventure romp (Star Wars, Fifth Element)
- Horror (Event Horizon, Alien)
- Western (Firefly/Serenity)
- Psychological Thriller (Sunshine)
- Comedy (HHGTTG, Space Balls, Mars Attacks)

Remakes don't count! (e.g. War of the Worlds, Solaris, The Day the Earth Stood Still). The only exception I can currently think of is the 1997 film "Contact" (and that's based on a novel from 1985). [I dug up some more possible exceptions later: see below]

One might argue that culture has moved on from the moon landings era obsession with space travel (hence no market for traditional space sci-fi). That is part of it. But I don't think it's a case of maturing beyond unrealistic fantasies: interplanetary human colonisation and encounters with unimaginatively biological aliens (inexplicably intent on genocide). Space just went out of fashion. The movie industry is fixated on recirculating the same old ideas, albeit with updated technobabble and stunning visual effects. But a lack of innovation by Hollywood is not limited to this specific genre, for sure.

Remakes are the most obvious aspect of this. Then there are tributes to the heyday of the genre: "Moon" appears to be one, but seeing as no cinemas within 25 miles of me deigned to show it, I haven't found out yet. This cinematic commission might seem a little odd given it's critical acclaim and coincidence with the 40th anniversary of the moon landings. One can only assume the film's distributors weren't on good enough terms with most cinema chains. Or the easy money to be made, by devoting 3 screens entirely to Harry Potter, outweighed any desire to provide choice to customers. (and 'the industry' wonders why there's so much pirating)

[Above: Mark Kermode reviews Moon.]

The remaining class of Features, are only ostensibly original; where there should be some solid concepts, there is just the watered down echoing of dependable old favourites. A near universal bias towards a certain area of the sci-fi 'idea space'.


== Dystopia Blues ==

The most immutable theme is the Orwellian Dystopia. So much is planted firmly at the foot of films like "THX 1138" and "Fahrenheit 451"; it's a genre of it's own: Blade Runner, Escape from New York, Demolition Man, Gattaca, Equilibrium, Minority Report, Aeon flux, Children of Men, The Island....

Much of the general public seems to have unconsciously accepted technological advance as synonymous with a gloomy, dystopian future. Any, self proclaimed, fictional utopia is *always* shown to be flawed and dystopian, probably a fascist dictatorship too.

I would go as far as to blame this (in part) for the new romanticism permeating our culture: a rosy fantasy vision of the past; the perceived superiority of organic food, and the false environmentalism of living off your own land, for examples. Somewhat reminiscent of the revival of mysticism in pre-Hitler Germany (and other countries): a backlash to the impersonal horrors of industrialism and WW1.

Maybe, if films had been pushing the frontiers of sci-fi, in the process depicting *some* instances where progress provides mostly boons to society, there would be more for people to be positive about in the mid-distant future.

Keanu (i.e. devil's advocate): "u couldn't have a story line where nothing goes wrong and everyone's happy: it'd be boring!"

Obviously I'm not suggesting that; there is drama and strife aplenty in my favourite sci-fi novels, that also harbour pro-progress sentiments. OK, so I'd be expecting a lot for a major film company to bank-roll a feature based in or around Vinge's Technological Singularity (for the moment at least). Even if they went with one of Stross's books, those leave human kind (as we know it) sidelined into unfavourable positions, because of a Singularity. Besides he was only first published this millennium: far too avant-guard for popularisation! It seems there's a 20-30 year period before hard sci-fi ideas can be de-classified for widespread media consumption. Ironic, given that they're generally outdated within 10-15 years, these days.

However, Iain M. Bank's has been writing stories set in his "Culture" universe since 1987. In many ways they're pretty damn bleak: often, most of the main characters get killed off just before they might have reach a happy end. But there is an ever present, positive leitmotif: the galactic civilisation of "The Culture" itself. An unmistakable utopia, where an anarchy of super-intelligent, yet emotional, machine minds (embodied in space ships and entire planets) altruistically cater for a race of near-humans. Because of their near god-like control of matter, it's trivial to provide for the humans' every whim, however lavish by today's standards. The tribulations come in dealing with other, less advanced civilisations, and characters there-in.

I would be overcome with joy (caring not of being proven wrong) if a film were based on the substance and spirit of any of those novels. I think it would easily make sufficiently compelling viewing for a contemporary audience too, with: action, violence, plenty of scope for overblown use of CGI, prolific sex and drugs. However, because the latter two aspects are presented as entirely acceptable, without any drawbacks, I expect this vista would be considered, by our current 'powers that be', too liberal to be shown to the general public. Not that there's any political bias in our media of course.

Perhaps that is part of the problem: an (implicit) conspiracy not to show people how good they could have it, to prevent dissatisfaction with their continuous drudgery in the pursuit of material possessions. “Nothing is perfect” or comes for free!? (not even the 'best things in life'!) Anything that equips imaginations, highlighting society's blind spot to alternatives to the current monetary system, would be a most dangerous heracy. [But more on that when I finish distilling my thoughts on Douglas Rushkoff's "Life Inc." into a blog entry.]


== Other (Space) Sci-fi Worthy of the Title ==

+ Deep Impact - A glaring exception to my earlier moan. Although it had a near identical plot to Armageddon, it is it's total antithesis. This is a sci-fi movie with good science throughout! Even the name of the nuclear pulse propulsion spacecraft, used to rendezvous with the comet, is a reference to the real world “Project Orion”, abandoned in 1963 because of the Partial Test Ban Treaty. Also, although nuclear bombs are used to blow apart the comet (twice), the result is a much more realistic semi-fail, with an epic tidal wave wiping out much of America (and presumably other parts of the world too; I never said it wasn't US-centric). Released in the same summer as Armageddon (1998) it somehow opened more strongly at the box office. Armageddon did end up grossing more worldwide ($555M vs $349M), but then it cost twice as much to make. So not a total fail for science there.

+ Spielberg has an unparalleled track record here, with: “Close Encounters of the Third Kind”, E.T. and A.I.. If he manages not to totally eviscerate the live action remake of “Ghost in the Shell” (1995), my all time favourite film, then he may move even further up my list of favourite Directors. Perhaps then the original, and “Stand Alone Complex” series too, might reach beyond anime fans watching “Adult Swim”. We'll have to wait until 2011 to find out though (22 years after the cutting-edge manga).

[Above: "Tank Wins" by Me; Composition from parts of the end of G.I.T.S.]

A.I. (and E.T.) was (were) largely designed for lacrimation (i.e. 'weapies'), but they had undeniably high conceptual production values. A.I. was somewhat of an epic tale of a robot boy, with a strong message that artificial beings can be every bit as human as ourself. Unfortunately most people I know had fallen asleep by the end, which is the most interesting part (from a futurist's POV): he is dug up and revived by advanced aliens, who are actually told to be the descendent of machines, if one pays attention. Naturally, I'm not keen on the ultimate ending: apparently it's impossible to turn 'Pinocchio' into a "real boy", so he gets 1 "perfect" day with his mommy before dying. OK, it made me cry a little (more from the sentiment of the little robot teddy bear than anything else, mind), but it's still an utter pile of religiousisational gash!: why *not* be able to turn him into a biological boy? He was clearly within a simulation during his perfect day; why not persist there, walk off into the sunset, live and grow with other sentient simulations (of other 'revivers', play on survivors)? Buying into the singularity thing (Tiplerian or otherwise) might be too much, but getting that close to it and then turning around and producing the usual line of: all life is finite, death is the natural order, we should just enjoy the rare good moments and be satisfied....: Bah!!!!

+ Matrix - (including Reloaded), though again I had high hopes for the conclusion of this arc that were brutally murdered by Revolutions: you expect us to believe that after swiftly dispatching humans, the super-advanced, conscious programs of the machine world had just sat and twiddled their thumbs for thousands of years?!!... Even if they had been inexplicably confined to the surface of this one planet, with the capability of simulating an entire world, would they not also have simulated a plethora of other worlds/ecologies/levels and types of intelligence??!! If it's too difficult to visualise these, at least give us a hint they, or something interesting exists...

+ Terminator - up to T2 only, which was largely an action shooter with some brilliant chase sequences. It also largely responsible for founding public expection of human extermination by future A.I.. But at least it raised awareness, and the sucessively advanced terminator robots imply perpetual progess beyond the influence of human creativity.

+ Titan AE - though animated and puerile (and the "pure energy" beings posses no features of such) it has a genesis device spaceship that is kind cool in a retro/steam-punk kind of way.

+ Vanilla Sky (remake of the Spanish original, "Open Your Eyes", featuring the same lead actress) - very impressed that this turned out to be set in a simulation, with Tom Cruise having been resurrected from cryogenic storage. Disappointed there wasn't any hint of events outside the simulation, but was to be expected.

+ Minority report - hmm, kind of; though clearly a distopia, it had a few pieces of hard science-futurism in.


== Back into Deep Space, TV and Further Discussions ==

+ Surprisingly, Star Wars Episodes 2 and 3 largely met my standards. Although action heavy, dark themes replaced whimsical swashbuckling, and there was even a brief nod to the conspicuous lack of (trans)human level AI in their universe. [previously blogged]

+ Star Trek - As the films go, the first, "Star Trek the Motion Picture", is clearly high concept sci-fi that happens to use the established characters from the fictional universe. Because of it's lack of profitability and critical reception, Gene Roddenberry lost creative control of the sequels, probably why their priorities appear to have been turned around: action adventure in a space setting.

If there is a missing link that bridges between the space sci-fi of the 70s and the new millennium, it would undoubtedly be the "Star Trek, the Next Generation" franchise (including most of “Voyager” and the earlier “Deep Space 9” series). Perhaps an episodic structure, and lower costs made this the ideal vestal for space-fiction proper. In my late teens I rejected Star Trek, to an extent, cringing that my earlier self had accumulated the Star Trek fact files in a search for further inspiration/answers to the future. Of course, as a profit extending item of merchandise for hardcore, geek fans, they contained no such revelations. Also, I became painfully aware of how deeply uncool Star Trek appreciation was, thanks largely to a high school peer nicknamed "Trekky". Getting into bona fide sci-fi novels, such as A.C. Clarke's “2001” quadrilogy (that I read in reverse order), also helped foster disdain for the Star Trek universe.

From an even greater retrospective height, I can appreciate the value of the Star Trek series; they introduced me to a plethora of sci-fi, philosophy and psychology concepts. They may even be significantly responsible for shaping my world view and interests in science and technology that took me to degree level studies. I only regret that kids (like me) growing up in the 00s won't have had access, to such a good stepping stone, into sci-fi literature and beyond. Contemporary 'sci-fi' series have gone the way of the space-opera movie: concentrating on drama, character development and TV-soap style story arcs, while focusing on contemporary or nostalgic issues and replacing any humanist philosophy with Hollywood style Christianity.

The TV section of the Wikipedia article on Sci-fi confirms and clarifies my view. The 90s were actually somewhat of a hay-day for good sci-fi TV with: "Babylon 5", "SeaQuest DSV" and even "Red Dwarf" (though primarily comedy) and "The Outer Limits" (despite close similarities to "Goose Bumps"; a child oriented horror mini-novel series). There were some inspirational episodes of the X-files too (even if we never did conclusively discover the "Truth... Out There"). The one episode I most strongly remember enjoying (involving a human having been uploaded to the internet) turns out to have been written by William Gibson (the Godfather of cyberpunk novels). However, that episode, "Kill Switch" (series 5), and his latter collaboration, "First Person Shooter" (series 7), were among the last ever examples of Sci-fi authors working with TV production. It is no wonder that science (particularly physics) graduates are in such steep decline. I hope the current (3rd rate) sci-fi, and reruns of shows from the glory days, are enough to inspire *some* of our next generation into sci/tech related vocations.

[Edit 2014-10-21 - Minor corrections and kermode video fixed.]

Thursday, 18 December 2008

Top Gear's misrepresentation of Hydrogen Verses Battery Electric Cars

I'm referring to the most recent Top Gear - Series 12, episode 7, [previously] viewable here

James May's review of the Honda FCX Clarity (at the end of said episode) makes out that the very limited production (essentially concept) hydrogen fuel cell car is near perfect, ready to save us from the outdated uselessness of battery power cars. To really bang this home Clarkson has already demolished 2 Tesla Roadsters on the track earlier on.

What was plain ignored:

 - The hydrogen tank has the most flammable gas known to man stored at 340 times atmospheric pressure! I'm not scaremongering, this is still a huge issue holding back hydrogen cars; the gas is only a liquid at -250 degrees C (at standard pressure). Billions are being spent on developing storage substances that can hold and release the gas safely. So far they have efficiencies of about 0.1% hydrogen to substrate, by weight.

Above: 5000psi hydrogen storage tank being fitted to a Honda FCX Clarity.
 - Hydrogen gas has to be liberated from petrochemicals (oil) or electrolyzed from water using electrical energy. This process has much greater inefficiencies than with electrical battery storage.

Clarkson, and the "Top Plug" team, while continually pouncing on battery cars for refilling from power station electricity, appear to have swallowed the "hydrogen is the most abundant element in the universe" line and presume it's just lying about ready to fling in your car.

 - There is *no* hydrogen distribution system in place and is not going to be one anytime soon because it is so difficult and expensive.

 - There is (and has to be) a sizable lithium battery in the Honda Clarity for energy regeneration under breaking and buffering the power from the fuel cell (because it is too slow on it's own).

In fact, this car uses identical technology to the Tesla, except that a hydrogen cell recharges the drive battery, instead of having a bigger battery or a high efficiency petrol generator topping it up (like the PML flightlink QED Mini).

What I can't wait to see is the all British Lightning GT driving around the Top Gear track after their first cars are produced in 2009. They use PMLs 'Hi-Pa drive' system of 4 in-wheel motors, which give the Lightning the same 0-60 time as the Tesla, but a slightly higher top speed, no overheating problems and 4 wheel independent drive for perfect handling.

 Above: Lightning GT
This technology has also been taken fully on-board by Volvo who have a serious plug-in hybrid scheduled for full roll out in under 4 years, and there is the Ford F150 pickup truck concept demonstrating that big vehicles can be made green just as easily.

[UPDATED 2014-03-26 - Refurbished with new pictures.]

The Lightning GT seem to have dropped hub motors some time ago, and this link (previously included) is officially dead - http://www.hipadrive.com/phev.html

But more recently, engineering CEO superstar, Elon Musk, called out fuel cell bullshit too.