Friday, 25 April 2008

'...It is this latter ability that has caused so many problems for Facebook users. Third-party plugins such as "SuperWall" claim to extend functionality of the Facebook application, but have behaved in anything but a friendly manner. SuperWall would randomly send messages to existing people in a user's Facebook friends list, claiming that they had to install SuperWall in order to read a new message from that user. Once installed, it would keep performing this trick with the next person, and so forth. As it turned out, this behavior was by design.'

from Between black and white: the state of grayware on the PC

Sunday, 13 April 2008

Wednesday, 19 March 2008

Sunday, 16 March 2008

Bit of background

'At the end of 2005, the UN Special Rapporteur on Torture, Dr Manfred Nowak, visited China, Tibet and Xinjiang. Dr Nowak stated that "he was struck by the strictness of prison discipline and a palpable level of fear and self-censorship when talking to detainees". He also confirmed that a variety of torture methods are still widely and systematically used; including beatings, use of electric shock batons, submersion in pits of sewage, exposure to conditions of extreme heat or cold, deprivation of sleep, food or water, prolonged solitary confinement, denial of medical treatment and hard labour.'

from http://www.freetibet.org/campaigns/stoptorture/index.htm


Wednesday, 16 January 2008

Seriously geeky

Mas-Collel, Whinston and Green provide an elegant proof of the fact that lexicographic preferences cannot be represented by a utility function. Here's an alternative proof that is more intuitive to present. I use ^ to represent superscripts and _ to represent subscripts, as in Latex.

Lexicographic preferences in R^2 are defined as follows: x is weakly preferred to y if and only if either x_1>y_1 or (x_1=y_1 and x_2>=y_2). In words, even the smallest gain in the first dimension outweights even the largest gain in the second dimension.

For a contradiction, suppose there is a utility function u:R^2->R representing these preferences. Consider the line segment from (1,1) to (2,1). Along this line segment, u is increasing and hence continuous at all but a countable set of points (for a proof see Rudin Theorem 4.30). Find a point x where u is continuous. Now consider any point y=(x_1,x_2+e) with e>0. As y is strictly preferred to x, u(y)>u(x). But as we approach x from the right, i.e. for some point z=(x_1+h,x_2) with h>0 small enough, by continuity u(z) approaches u(x) and hence u(z) < u(y). However, by lexicographic preferences, z is strictly preferred to y as it is higher on the first dimension. This contradicts the premise that u represents preferences. QED.

Thursday, 27 December 2007

Nothing new under the sun


The day was gentle and fair…. It was curiously quiet everywhere, not so much silent as hushed and muted. Although the West End pavements were packed with a vast multitude it was a subtly different crowd from any that the authorities had seen before. What had happened was that this most stately public show was being observed with an intensely private emotion…. As the coffin was carried in to the Abbey there was a sense of release…. After the funeral came the homage. In five days over a million people visited the grave and left a hundred thousand wreaths….

Ronald Blythe, The Age of Illusion: the burial of the unknown soldier in Westminster Abbey, 1920

But the worst outcry of this sort came after a talk on birth control by Julian Huxley and Cecil Lewis and was caused by a well-rehearsed voice breaking into the discussion, with a dramatic, ‘I protest… I never… It’s indecent… I protest!’ The discussion stopped, as though shocked, then continued as before. It was all a put-up job by a realistic producer, and when this came out the B.B.C. was loudly condemned for going in for such stunts. The Manchester Guardian likened it to a man who blacks himself all over to play Othello.

Ibid.: the era of Reith at the BBC

Friday, 14 December 2007

Inequality, three

Worries: can I really make this neat dividing line between unacceptable, absolute poverty that allows the people in it to be humiliated and acceptable, relative poverty? Brazil is a middle income country, after all. Our needs are socially defined. Perhaps it’s naïve to think that only some level of absolute poverty “forces” people to sell their dignity. If so, then the move from inequality to indecency to absolute poverty fails. Relative poverty would indeed matter. (Or I could just give up the strong feeling I have that buying people’s humiliation is evil; or I could punt this into the arena of social capital and civic culture, by saying that the problem was the video participants’ lack of self-respect.)

Worries on the other side: can I really neatly divide porn up into what’s acceptable although not my personal cup of tea – maybe even quite gross – and what’s bad and exploitative? I am uncomfortably reminded of that Chris Morris line from Brass Eye: “the amount of heroin I use is harmless.... But what about other people less stable, less educated, less middle-class than me? Builders or blacks for example.”

Inequality, two

Let's get a little more conceptual, staying with the video example.

Why should a convinced free-marketeer like me worry about inequality? Well, I believe in freedom of contract, but I cannot happily accept that one person can buy the ritual humiliation of other people before a global audience. (There is no freedom-of-speech, S&M roleplay, deconstructing-power-games context here, by the way. The context is purely commercial.) The problem, I think, is that this violates the basic respect for human dignity which, among other things, justifies human rights. These things would not exist in a decent society.

On the other hand, I do not want to say that the women who made this movie were misguided. (Basic idea behind rational choice theory: your objects of study are not stupid.) Instead I suppose that they were desperate. That leads me to think that the real problem with inequality is not the customer’s relative wealth, but the women’s absolute poverty. Most reasonably well-off people wouldn’t eat shit on video for a million dollars. (Some people probably would – humans vary – and I’m OK with that as a choice, I take my libertarianism about sex seriously. I’m not OK with extremely poor people being used as playthings.)

That in turn makes me think that the best remedy for “obscene inequality” is pro-poor growth, as fast as possible. As for the expensive cocktails, well, the vulgar new rich will be always with us, and with a bit of luck their children will found libraries.

Inequality, one

Inequality has crept back on to the agenda, witness the recent story about the £35000 cocktail.

For anybody who thinks “obscene wealth” refers to people richer than they are, here’s an anecdote. You know these artists who e.g. pay homeless Russians £25 to pose for nude photographs, thus challenging our ideas of, oh, fill in the blanks? One person, not an artist, just a guy on the internet, pushed this idea a little farther. He hired a bunch of Brazilian women and got a video made in which they spend a lot of time – there is no nice way to put this – eating their own and each others’ shit. He was not motivated by profit, he just one day decided to create an extremely degrading and humiliating video. You can read about it at somethingawful.com, I won’t provide the link. The video is no doubt floating around the internet, and probably will be forever.
When I read this story, written in somethingawful.com’s world-weary tone of voice, it made me viscerally angry and sad, which not many pieces of news do any more. But the important point is: the whole shoot cost about $500.

Wednesday, 12 December 2007

in memoriam Evel Knievel

... I had one of his toy motorbikes.

From the Independent obit: 'the Inland Revenue Service pursued him for many years claiming $21m in unpaid taxes. He told the IRS that if they sent anyone round to his house, "I'll blow his head right off his shoulders".'

Just took the pledge

The NO2ID Pledge - have YOU made it yet?

... what are you waiting for?

Tuesday, 11 December 2007

I could go on

Facebook. like it's 1999 and nobody's yet learned not to forward chain letters.

Facebook: the web's second childhood.

Facebook: A VIRTUAL POKE IS NO GOOD TO ME.

Facebook: [ ] allow this application to rape your privacy.

Facebook: make friends! discover they are vacuous!

RRRRRRRRRRRRRRRRRR. NNNNGGGGG.

Tuesday, 6 November 2007

Poem

The Dog and Fox at Play


Every morning, the dog and the fox pup

Played in the garden without a sound,

Damp and delighted in the knee-high grass,

Chasing each other round and round.


After the divorce, the dog and people went away,

Furniture was packed and the house was sold.

There in November, I saw the adult fox

Check bins for scraps in a moderate cold.


Joy, life and warmth are merely accidental

In a world a sere God made for reasons of His own.

Echoes sometimes reach Him of the hound and fox pup playing

Like the skipping in a wide lake of a stone.

Monday, 29 October 2007

bit o' Nietzsche for a Monday morning

O Mensch! Gib acht!
Was spricht die tiefe Mitternacht?
"Ich schlief, ich schlief -,
Aus tiefem Traum bin ich erwacht: -
Die Welt ist tief,
Und tiefer als der Tag gedacht.
Tief ist ihr Weh -,
Lust - tiefer noch als Herzeleid:
Weh spricht: Vergeh!
Doch alle Lust will Ewigkeit -,
- Will tiefe, tiefe Ewigkeit!"

Friday, 26 October 2007

Facts about jumpers

Hear me, my brothers:

Sooner or later, in every relationship, comes the key moment when your girlfriend gives you a jumper.

Brothers, we know what this jumper means. It is warm and fluffy, it is for you to wear and the message it conveys is:

"This man belongs to me. He is my boyfriend.

He is a little shorn sheep. "

And yet it is most strangely and mysteriously true, as you will undoubtedly discover, that the quality of the jumper is a very good indicator of the quality of the girlfriend.