Occasional reflections on Life, the World, and Mathematics

Archive for April, 2018

Willfully misleading

A Home Office spokesman says

It is wilfully misleading to conflate the situation experienced by people from the Windrush generation with measures in place to tackle illegal immigration and protect the UK taxpayer.

Not just misleading, but willfully. There’s no possible way anyone could honestly see a connection between a policy of “hostile environment” (their words) for undocumented immigrants — effectively deputising the health service and every landlord to act as amateur immigration sleuths — and the mistreatment of members of a minority ethnic group whose immigration status has been kept deliberately ambiguous.

One of the celebrated cases reported in The Guardian was that of a man whose radiotherapy for prostate cancer was cancelled because he couldn’t prove his legal residency, despite having lived in the UK for 45 years. It’s hard to imagine that his skin colour and accent played no role in the hospital’s decision to question his status. It reminded me of a question I’ve considered several times: How can a native-born British citizen prove his or her right to be here? Everyone born since birthright citizenship was eliminated has been subject to jus sanguinis, with citizenship conditional on their bloodline. If you’re 30 years old and your landlord is asking you to prove your right to reside in the country, what do you do? Call your parents and ask for their birth certificates? If your parents are John and Mary Smith, how do you prove that they’re your parents? We’re gradually coming to a generation that will need to prove their grandparents were citizens. Registration of citizens and ID cards would resolve the problem, but the Tories got rid of those, suggesting they would infringe on personal liberty. As I commented before, the Conservatives have a stereotype of Nazis demanding people’s “papers”, and decided that the evil was not that disfavoured individuals were punished for not having correct papers, the offense was to provide them with papers in the first place.

Jared Kushner thinks ahead on prison reform

One of the oddest trends of the latter half of the odd 1970s in the US was the transformation of law-and-order conservatives like Charles Colson and even G. Gordon Liddy into prison-reform advocates, after they had spent some time themselves in federal prison for their role in the Watergate scandal. The President’s son in law isn’t waiting. Congress is considering a package of reform measures to improve federal prison training programmes, and increase the possibilities for early release for good behaviour. Reports are that Kushner has taken time out of his busy schedule making peace in the Middle East and solving the opioid crisis to lobby for the bill. JK is, of course, famously well behaved. What good is advocating prison reform if it comes too late for you to take advantage of it?

I wanna hold your (geopolitical) hand

The trans-Atlantic romcom goes into its next season. We recall the highlight of last season, when Theresa and Donald were sharing a personal moment in their “special relationship”.


At the start of the new season, Melania confirms that she really would rather hold almost anything than Donald’s hand:

Theresa was dancing around Number 10, like, “I can have him all to myself.” But then this French dude came into the picture.


They look so happy together. Macron is even boasting about their “very special relationship”. And Theresa is saying, but Donald, I thought our relationship was the special one. I left Europa for you…

Do loony leftists use the right-hand rule?

So Leave.EU is still active, and apparently last year they were soliciting a graphic to ridicule journalist Carole Cadwalladr:

As a mathematical scientist it strikes me as significant that she is considered to be discredited by association with three images: Flat Earth, Illuminati (though it looks to me like the Masonic eye from the US dollar bill), and what looks like a cheat sheet for an introductory electromagnetism course. Down in the corner we see that she’s been learning the right-hand rule for multiplying vectors. Right above it she has the formula for calculating power, which seems problematic.

The president’s dilemma

In the classic prisoners’ dilemma, two members of a criminal gang have been caught by police. There is enough evidence to convict them of minor crimes, but without testimony from one of them they will receive only a light sentence, say one year in prison. If one of them agrees to cooperate with the investigation, prosecutors will let him out for time served, and be able to send the other to prison for ten years. But if they both cooperate with the investigation, both will go to prison for five years (perhaps because the prosecutors will have their information, but not their testimony). Key to the game is that the players are unable to coordinate their strategy. Clearly the best for both of them would be to keep quiet, but the strategy of cooperating with the investigation is superior, from their private perspective, regardless of what the other player does. So they both talk, and both get heavy sentences.

One weird thing about the story here is that the symmetry really doesn’t make sense. It’s not impossible, but it’s peculiar to imagine prosecutors being so interested in pinning the major crime on someone that they’re willing to let a confederate walk free, but indifferent to who flips on whom. That suggests we consider a less-known hierarchical version of this game, where one player is the powerful boss of a crime syndicate — let’s call him “The President” — and the other one is “The Attorney”, who knows all the details of his crimes, and is sufficiently involved to be criminally liable himself. Let’s call this game “The President’s Dilemma”. (more…)

Neanderthal science

I just listened to all of a two-hour discussion between journalist Ezra Klein and professional atheist Sam Harris, about Harris’s defense of the right-wing policy entrepreneur (as Matthew Yglesias has described him) Charles Murray, famous for his racist application of intelligence research to public policy, most famously in a notorious chapter of his book The Bell Curve. Klein pushes back effectively against Harris’s self-serving martyrdom — Harris, not unreasonably, identifies with the suffering of a wealthy and famous purveyor of quack science whose livelihood is ever-so-slightly harmed by public criticism* — but he doesn’t sufficiently engage, I think, with Harris’s contention that he is promoting the values of real science. Unfortunately, the “mainstream social science” that Harris and Murray are promoting exists only in secret messages from “reputable scientists in my inbox, who have totally taken my side in this, but who are too afraid to say so publicly”. Harris doesn’t allow for a second that there is any good-faith argument on the other side. Anyone who disagrees is merely trying to shut down scientific progress, or simply confusing scientific truth with do-gooding wishful thinking.

The truth of the matter is, Murray and other brave seekers of truth are doing the opposite of helping to clarify reality. They are wading into a swamp of confusion, and pulling out some especially stinky slime that they can hurl at disfavoured groups.

As much as Harris tries to promote Murray as a pure-hearted “content-of-our-character” anti-racist individualist, as long as “race” exists as a social factor affecting people’s self-image, the communities they belong to, and the way they are perceived by others, it remains a potent social force. When demographers argue that “race” isn’t “real”, they are saying that racial categories don’t separate natural clusters by genetic or physical traits. When Murray says, let’s stop talking about race, let’s talk about individual genetic endowments, he is saying that racial groupings have no causal effect on their own, but only label clusters whose difference arise from deep physical causes — wrong on both sides. (more…)

Suspicious precision

Kevin Drum notes some tweets from lawyer Susan Simpson. She was perusing (as one does) the public records of Trump campaign expenditures, and noticed something funny:

To me it looks almost too exact. Is Michael Cohen, in trying to cover up a $130,000 transfer, really incapable of seeing that $129,999.72 looks suspiciously close? Couldn’t he at least swallow, I don’t know, a $20 loss and make it $129,981.34?

The magical zero marginal

There’s no knowledge like secret knowledge… Prominent in today’s news is Labour’s contention that

leaked Home Office documents suggesting government cuts are linked to the rise in violent crime, and demanded the home secretary explain herself to parliament.

It’s a bizarre accusation, not because it is implausible, but because it could not be otherwise, and the suggestion that this has been “revealed” by a secret report is part of implicitly accepting an inane pattern of government — and not just government — obfuscation that I am choosing to call the magical zero marginal. The way it works is, the government (let us say) feels an urge to reduce expenditures on (let us say) policing. It’s a problem, because the voters rather like police, by and large, and feel that they derive benefit. Not to worry, says the government press release (possibly produced by a dedicated key on the Whitehall keyboard), there will be no reduction in service. The costs will be made up with efficiency gains. The claim is that there is a significant portion of the current budget that is bringing zero marginal benefit, and whose elimination will therefore cause no harm. Perhaps this portion doesn’t exist as a budget line item now, but will after a “reorganisation” — but then the implicit claim is that the costs of the reorganisation as well will be covered by the savings. (more…)

Odysseus and the NRA

From Emily Wilson’s lovely new translation of The Odyssey:

I put [the weapons] safe away from all that smoke.
Some spirit also warned me if you drink
too much and argue, you could hurt each other,
dishonoring your banquet and your courtship.
Weapons themselves can tempt a man to fight.

This sounds like a classic gun-control position, refuting the classic “guns don’t kill people, people kill people” gun-rights line. Weapons themselves provoke violence. Gun control saves lives.

But! In context, the meaning is exactly the opposite. This is one of Odysseus’s deceits. He is preparing this line as an argument for removing the suitors’ weapons, to leave them defenceless when he chooses to attack them. The lesson: don’t listen to the sword-grabbers who claim that disarming will make you safer.

Odysseus for NRA president!

The real antisemites

So, the UK has a prime minister who dog-whistles slightly modified Nazi tropes at a Conservative Party conference, its house organ accuses Jewish financiers of wrecking the great national project, but somehow the British Jewish soi-disant mainstream organisations are demonstrating in front of Parliament because six years ago the Opposition leader supported an artist’s anticapitalist mural, and everyone knows that predatory capitalists are all really Jewish.

And now it turns out that the real Jew haters are other Jews who have the temerity to mock those mainstream Jewish leaders.

I’m pretty sure the opposite of anti-Semitism is not “Political leaders should not associate with Jews who aren’t approved by the Board of Deputies”.

Tag Cloud