* Posts by Chris Miller

3550 publicly visible posts • joined 6 Apr 2007

Danish lit star Helle Helle, Marianne Faithfull and Jim Al-Khalili on Quantum Biology

Chris Miller

@Mephistro

You must accept (because the mathematics is watertight and getting on for a century old) that there are fundamental limits to what a computer (Turing machine) can do. If the human mind is capable of such things, then it can't be simulated on a computer, no matter how powerful and how clever the programmer. It might (pure speculation) be possible to emulate the mind on a quantum computer, which is not subject to the same limitations.

Penrose has explicitly said that he is not claiming that there must be something non-physical about human consciousness. He accepts that it may one day be possible to emulate the human mind with a machine - but it is not possible to do it with a Turing machine, something more powerful would be needed.

Chris Miller

What Gödel is saying (oversimplifying horrendously) is that for any* system of logic and a finite set of axioms, there will always be true statements that cannot be 'proved' using only the rules of the system. Of course, you can trivially program a computer to print "Gödel's theorem is true" (just as you can to print 'Hello world') but you can't program the computer to justify that statement.

Turing (and independently, earlier, Church) proved the Church-Turing Theorem on computable numbers. He used a version of Cantor's diagonal argument to demonstrate the ultimate limitations of a 'Turing machine' (a purely theoretical construct he invented for this purpose). If you haven't already, I recommend reading "Gödel, Escher. Bach" by Hofstadter - an astonishing book.

* sufficiently complex - i.e. powerful enough to encompass standard arithmetic

Chris Miller
Happy

Rather than try to remember Alt+0246, I just type Godel into Google (other search engines are available, apparently), which corrects it to Gödel, which I can then paste into the edit box. If you use Chrome (other browsers, blah, blah) it autocorrects to the correct spelling - same with Düsseldorf.

Chris Miller

You need to face up to the fact that Sir Roger Penrose may be slightly cleverer than you are (he's certainly cleverer than I am, but some may consider that to be not much of a hurdle). He isn't challenging the truth of Gödel's theorem or claiming that it somehow undermines all of mathematics. He's just pointing out that the fact that we can understand it (and, specifically, see that Gödel statements must be true, even though they can't be proved algortihmically) contradicts any claim that human intelligence is ultimately derived from algorithmic computation.

As you're familiar with Gentzen's theorem, you may well be aware of the related theorem due to Goodstein (1944), which was proved by showing it to be equivalent to a Gödel statement in higher order arithmetic. (I've pinched this from Penrose's The Large, the Small and the Human Mind.)

Chris Miller

You misrepresent Penrose's argument. He certainly doesn't claim that we 'think by logical deduction' (although obviously we can), quite the opposite. He points out that if (as some strong AI proponents claim) the mind is simply an algorithmic process, equivalent to a Turing machine, it would be impossible for us to understand Gödel's incompleteness theorem, which we (some of us, anyway) clearly do. Therefore, the mind cannot be completely equivalent to an algorithm, no matter how complex.

He speculates that some type of quantum process could be involved, though he freely admits that he can't demonstrate a physical mechanism that would operate at body temperature ('more research is needed into this topic') - perhaps the work examined by the authors is taking us closer to establishing the feasibility of such a process.

How mobile device management is taking on the BYOD challenge

Chris Miller

Re: VDI is not the panacea you might think it is

I'll add Industrial Plant simulation to my list of topics unsuitable for VDI. But, I repeat, most people aren't working on CAM, they need only a few basic apps that are easily capable of being handled through VDI.

Chris Miller

Virtual Desktop Infrastructure

Solves many of the problems of BYOD. All you need is two pieces of software - a VDI client and a strong, secure VPN - that can be installed on a wide range of devices (there are plenty of solutions covering RIM and Apple, as well as most Android and Linux systems). WiFi in your offices (with an air-gap to the corporate network) and you're good to go.

I'd be the first to admit that not every application is suitable for VDI - CAD/CAM, software development, some marketing activities are obvious examples. But 90% of users (and in many organisations 99% of users) only need email, Internet/intranet browsing and standard office tools, which are well supported.

Do it right, and you'll find the support costs for your existing desktops will go down as well,.

BOFH: SOOO... You want to sell us some antivirus software?

Chris Miller
Headmaster

98.97%

Obviously it has two significant figures, so it's pretty accurate

It has four significant figures, two decimal places.

Excellent description of AV software. though.

We must SMASH the Democratic Deadlock with MINDFUL EVIDENCE

Chris Miller

Spoiler alert

You do understand that Steve Bong isn't real? (Although the moment when he becomes real is getting scarily close).

3D printed guns: This time it's for real! Oh, wait – no, still crap

Chris Miller
Paris Hilton

In the Line of Fire

In this (rather good) thriller Clint Eastwood plays the (oldest living) secret service agent, and John Malkovich as his nemesis builds an undetectable gun from epoxy. I realise that suspension of disbelief is required, but I wondered if it might be possible to 'print' a plastic gun and then use it as a mould for some similar substance. The epoxy I'm familiar with is probably too viscous to mould in this way, but could this be feasible?

Paris, because she probably knows as much about guns as I do.

The Great Smartphone Massacre: Android bloodbath gathers pace

Chris Miller

EE (Huawei) Kestrel

The missus accidentally 'dunked' her 'dumb' phone and bought a PAYG Kestrel for £89. Can't fault it. When my 30-month old Galaxy S3 finally gives up the ghost, I can't see why I'd want to spend £400 on a replacement.

Virgin 'spaceship' pilot 'unlocked tailbooms' going through sound barrier

Chris Miller

Re: When can we see the apologies?

And perhaps we should ban all speculation until the NTSB publish their report - but that's against human nature. I think you're using hindsight. I've no experience of air accident investigation, but if one of my computers goes TU, the first question that occurs to me is "what have we just changed?" In this case, no-one has disputed that this was the first flight using a new propellant in a rocket motor that has had a number of issues (as have most such systems). I'm glad this now appears not to have been the cause, since fixing a mechanical failure ought to be possible more quickly than replacing the propulsion system.

Dead pilot named in tragic Virgin Galactic spaceship crash

Chris Miller

Re: Vultures circling

Tom Bower has a track record as an investigative journalist and has spent years exposing the more 'interesting' aspects of Branson's enterprises. I'm sure he doesn't have or claim any special expertise in the area of rocketry, but he can certainly get access to people who have.

Chris Miller

Nitrous oxide

I thought N2O had always been the oxidant - it's the propellant that has changed.

UN: Fossil fuels should be terminaated 86 years from now

Chris Miller

Must ... stop ... emitting ... CO2 ... by ... 2100

I'll put a note in my 'To Do' list for 2080.

More seriously, though, does anyone expect the bulk of our energy still to be produced from fossil fuels in 2100? (Particularly given the generous economic growth projections built in to the IPCC models.) Isn't this a bit like the forecasts from 1900 that predicted London's streets would be knee-deep in horse-shit by 1930?

Pixel mania: Apple 27-inch iMac with 5K Retina display

Chris Miller

Re: Value for money?

I was afraid that would bring the Mac zealots out frothing and screaming :)

Yes, I get that 5 is a bigger number than 4. (Which part of "superior [...] for some purposes, at least" are you having difficulty understanding?) No, I don't think that makes it "value for money" (as the author claims) to pay 5x as much, particularly if the difference is barely detectable by the human eye. YMMV.

And (of course) Windows (since at least v3) allows you to scale the font - which is precisely what I said, doh!

Chris Miller

Re: Value for money?

a 3 year old beemer will hold its money better than a 3 year old skoda.

Ah yes, the good old 'greater fool' argument.

Chris Miller

Value for money?

I've just upgraded to a Dell 28" 4K display - £330+VAT. Guess what, it plugs straight in to my 2-year-old PC and works perfectly. Ah, the Mac aficionados will claim, but the Apple display has 5K pixels. But I already need to scale text up by 25% to make it legible on my (slightly larger) screen and individual pixels are only visible under strong magnification. How will having 5K pixels help?

Look, if owning a Mac rather than a PC (like owning a BMW* rather than a Škoda) helps you feel better about yourself, knock yourself out. But don't try to convince me what great value for money it is.

* The point being: I'm prepared to accept your view that the Beemer is a superior car - for some purposes, at least - just not that it offers superior value for money.

Google’s dot-com forget-me-not bomb: EU court still aiming at giant

Chris Miller

A Brussels fonctionnaire writes:

Gosh, you mean these interweb thingies spread outside Europe? Who knew??

IT JOB OUTSOURCING: Will it ever END?

Chris Miller

Transport costs

The biggest (and rather undersung) revolution in the last 50 years of doing stuff by manipulating atoms rather than bits, has been the plummeting cost of bulk transport. You might be amazed (though you really shouldn't be, if you think about it) at the actual cost of shipping a container full of (say) plastic ducks from China to Europe. This also applies to bulk transport of heavier and less costly commodities such as coal - which is essentially why there are no deep mines left in Western Europe (assuming you don't count Poland).

Weekend reads: Russell Brand's Revolution and Joy Division's Ian Curtis gets lyrical

Chris Miller

A lot of people at the time thought Marx had found the answer. Today we've had experience of various attempts to implement his ideas - all have ended badly, most of them catastrophically badly. So anyone who still thinks Marxism is the answer hasn't really grasped the question.

And just because some famous people were criticised initially and later proved to be correct doesn't mean that anyone who is criticised today must be right - most of them won't be, and are simply being criticised because they're spouting rubbish. As Carl Sagan put it:

The fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton*, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.

* Robert Fulton - designer of the first practical steamboat and submarine

In the next four weeks, 100 people will decide the future of the web

Chris Miller

Re: My vote...

gTLDs can be explained in two words: Free Money.

Chris Miller

Also sprach Douglas:

Well all right mister wise guy, if you’re so clever you tell us what colour it should be!

Time to test your sarcasm detectors: It's the UN's global comms shakeup extravaganza!

Chris Miller
Unhappy

If the ITU ran the Internet

We'd all be using ATM* instead of Ethernet and TCP/IP.

* Asynchronous Transfer Mode - wake up at the back. Actually, if you're on an xDSL link, you (sort of) use it to talk to the DSLAM.

Pssst. Want to buy a timeshare in the clouds?

Chris Miller

It's neither Allan nor Allen Kay (both appear in the article), but Alan Kay (not to be confused with Allen Key).

COMET 67P is basically TRAILING a HORRIFIC STENCH through space

Chris Miller

Which reminds me

There once was a man from Austrahlia

Who tattooed his arse with a dahlia.

The colour was fine

Likewise the design

But the odour, alas, was a fahlia.

RUMPY PUMPY: Bone says humans BONED Neanderthals 50,000 years B.C.

Chris Miller

It's intriguing to speculate

The last known Neanderthal site (on Gibraltar) is 'only' 20-25,000 years old - and these almost certainly weren't the very last Neanderthals, just the most recent we know of. It's not much of a stretch to speculate on 'what if Neanderthals had survived until the present day' - how would this have affected our approach to race, treatment of other species etc?

Lufthansa tosses IT biz to Big Blue, inks outsource deal with IBM

Chris Miller

I'm not sure this is quite the same thing. Amadeus and Sabre are (at heart) multi-airline reservation systems (I think Sabre started life as the American Airlines booking system). It makes sense for airlines to use them for this and related purposes rather than develop their own versions in house and then have to interface with them. While Amadeus and Sabre themselves are fundamentally software houses, and could reasonably choose to outsource the running of their 24x7 systems to a larger global player like HP.

Outsourcing large parts of your global IT systems, as Lufthansa would appear to be doing, is a much bigger step (braver, in the 'Yes Minister' sense).

Chris Miller

Re: Another bunch of mugs swallow the vendor's Koolaid

It's even worse than that. A contract* can only ever be effective if you assume that you know precisely what you will need in 2,3,5 years time. In which time the world will have changed, the business will have changed and the technology will have changed at least twice. If you have your own staff, you can simply say: hey guys, stop doing X and start doing Y. An outsourcer will say: unfortunately the changes you request are not covered by our agreement and will therefore be chargeable at our outrageous daily rate.

Even if you believe you can nail this down, I've seen a large global outsourcer threaten a large global company with simply walking away because they weren't making any (enough) money. Maybe after a few years of expensive lawyers you could win significant damages, but (starting tomorrow) you have no computer hardware, software or staff - how long are you going to stay in business? Top management caved in and signed a new contract at substantially higher rates.

* Contract: a legal document enforceable by the stronger party upon the weaker party.

Chris Miller

What could possibly go wrong

Prediction: this will not end well.

Preview redux: Microsoft ships new Windows 10 build with 7,000 changes

Chris Miller

Allegedly

Some third party apps misidentified a windows version beginning with a 9 as Windows 95 or 98. So calling it Windows 9 broke stuff.

Edward who? GCHQ boss dodges Snowden topic during last speech

Chris Miller

Re: They truly think we're all idiots

I think paedophile is rapidly replacing Nazi for the purposes of Godwin's Law.

The 'fun-nification' of computer education – good idea?

Chris Miller

I think learning some programming concepts - basic logic, reusable code, the importance of documentation - would be useful. Maybe the best way of doing this is to use an actual, real-life language, but the trouble is that by the time you're in a position to apply your knowledge, computer trends will inevitable have moved on. I remember having to learn Algol at Uni - never saw it again once I left.

No sail: NASA spikes Sunjammer

Chris Miller

Re: No propulsion?

I'm not sure how you'd stop the sail interacting with the solar wind. In most of the inner solar system, it dominates the effect of sunlight.

Chris Miller

Re: No propulsion?

I was going to say much the same thing, Richard, but I don't think you've got it quite right. The keel allows a boat to sail into the wind, but a solar sail can only change its angle to the two forces that act on it - sunlight and the solar wind (usually, but not always, aligned, which is why comets sometimes show two 'tails'). There's also the force of gravity acting in the opposite direction, so (if you can furl the sail or orient it perpendicular to the flow) you can get a fair degree of freedom of movement.

Google offers sweet new SDK to let Android devs join 'Lollipop' guild

Chris Miller
Happy

Friends of Dorothy

Which Munchkin came up with the Lollipop Guild headline?

The iPAD launch BEFORE it happened: SPECULATIVE GUFF ahead of actual event

Chris Miller

Re: Apple Q&A

Surely that should be Och iPad (pat. pending).

Mobile coverage on trains really is pants

Chris Miller

TBH I really don't want to download a song, let alone a movie, while on the train. I would like to be able to read/send emails and check the Network Rail/Tube app/website for my connection. Neither is possible for a lot of the time. Instead of building out 4G/5G networks to deliver 100Mb (4K movies on a 4 inch screen??) to a select few in city centres, please get 100Kb coverage working in most places. </rant>

Hardened Hydrazine the source of Galileo satnav FAIL

Chris Miller

the rockets didn't fire enough or soon enough to get the satellites into the desired orbit

Not quite, it was the attitude thrusters that froze, meaning that when the main engines fired, the thrust wasn't in the correct direction.

Heistmeisters crack cost of safecrackers with $150 widget

Chris Miller

Re: Time

I don't think they're planning to sell it for $150, rather that's the cost to purchase the necessary materials to make your own.

Chris Miller

It's very clever, but if you can get uninterrupted physical access to a safe for 4 days, there are easier ways to get inside it.

Swiss wildlife park serves up furry residents to visitors

Chris Miller

If you keep animals in a park environment, protected from natural predators (where they still exist), you need to cull a few percent a year to maintain a healthy population. If the animals are edible, it would be a terrible waste not to eat them.

Jony Ive: Flattered by rivals' designs? Nah, its 'theft'

Chris Miller

@frank ly

Probably a barista.

CAW! Vulture's news highlights - all in one smooth, egg-shaped vid

Chris Miller

Wrong, wrong, wrong

It's not Haitch-Pee, it's Aitch-Pee - there is no letter Haitch. Get it right!

Weekend reads: So, Anyway..., Anger is an Energy and Smoke Gets in your Eyes

Chris Miller

Dealing with flashers

“Whatcha think of this honey?” “Well man, I think you’re going to have to do better”

Missing the chance for the classic response: "It looks like a penis, only smaller".

Get NAS-ty: Reg puts claws to eight four-bay data dumpsters

Chris Miller

Re: What were the criteria for model selection???

It looks like they had a price range of £350-400 - the TS-451 is some way beyond that.

Women! Worried you won't get that Job in IT? Mention how hot you are

Chris Miller

Professor Johnson reached this eminence by way of early degrees in psychology and industrial/organisational psychology, followed by experience as Instructor of Management, professor of psychology and then professor of management.

A bit like becoming a professor of engineering without ever having held a spanner.

Official: Turing's Bombe better than a Concorde plane

Chris Miller

It's not just for 20th century artefacts

Our local windmill (c 1650) also has a heritage award. As the president told us when he presented it: in the 17th century this was the most advanced mechanical engineering on the planet - fully the equivalent of Concorde.

Uni boffins: 'Accurate' Android AV app outperforms most rivals

Chris Miller

Re: Drebin?

Just to be picky, that's from Airplane! not The Naked Gun, try:

Mayor: Drebin, I don't want any more trouble like you had last year on the southside. Understand? That's my policy.

Frank: Yes. Well, when I see 5 weirdos dressed in togas stabbing a guy in the middle of the park in full view of 100 people, I shoot the bastards. That's my policy.

Mayor: That was a Shakespeare in the Park production of Julius Caesar, you moron! You killed 5 actors! Good ones!

No, Big Data firm, the UK isn't teeming with UBER-FRISKY GIGOLOS

Chris Miller

Re: A pedant writes ...

Thanks Tim. I thought 1% sounded a bit low, though 10% sounds a bit high to me. Perhaps I don't move in the right circles, or maybe it's 10% of heterosexual men have visited a prostitute at least once. But 1 in 10 men regularly use prostitutes?