Occasional reflections on Life, the World, and Mathematics

Archive for May, 2018

The dead end of 70s childrearing

People often raise their children with ideals that they don’t really hold themselves, either because they on some level think they would be better people if they shared these ideals and hope their children will be better (tolerance, patience), or because they think these ideals are particularly appropriate to this stage of life (sharing, studiousness, Santa Claus). But I’ve been realising that some of what I learned as I child — at home, at school, and from the general culture

I genuinely found it weird that Barack Obama was attacked for harboring a secret “anti-colonialist” agenda (inherited from his father’s experience fighting the British for Kenyan independence. If I’d had to say what the core historical experience was that Americans harked back to, that defined our national identity, that we could agree upon, it was the history as colonials fighting for independence. The people opposing Obama dressed up in colonial-era costumes, harked back to the Boston Tea Party, striking a blow against the imperial power. (more…)

Unwritten rules of the road for Oxford

  1. Bicycles and pedestrians are stationary objects. You need to pass them, especially when turning directly ahead of them.
  2. Electric turn signals are a major energy drain! Signals should be activated only after you are well into the turn.
  3. Opening the driver-side door should be done in one fluid motion, as rapidly as possible. Don’t look back!
  4. When trapped by traffic you are exposed to attack from the sides and behind. Protect yourself and your fellow drivers by advancing your vehicle to block the pedestrian crossings, which are points of major vulnerability.
  5. “Cycle lane” is just a newfangled word for “free parking”.* Double yellow lines are there to remind you; where no cycle lane is available parking on the pavement is recommended.
  6. Killing pedestrians is wrong if you’ve been drinking. Otherwise, you’re the victim. (Don’t forget, insurance will pay for the damage. Be bold!)

* There is some uncertainty about the origin of this odd expression. Most experts believe that it has its origin in the Italian sulla collina — “on the hill” — referring to the practice, brought back by 17th century travellers, of establishing resting spots for travellers on hills in the countryside. From there it evolved into the modern usage, meaning “a strip of land set aside for parking vehicles”.

Your shadow genetic profile

So, the “Golden Gate killer” has been caught, after forty years. Good news, to be sure, and it’s exciting to hear of the police using modern data systems creatively:

Investigators used DNA from crime scenes that had been stored all these years and plugged the genetic profile of the suspected assailant into an online genealogy database. One such service, GEDmatch, said in a statement on Friday that law enforcement officials had used its database to crack the case. Officers found distant relatives of Mr. DeAngelo’s and, despite his years of eluding the authorities, traced their DNA to his front door.

And yet… This is just another example of how all traditional notions of privacy are crumbling in the face of the twin assaults from information technology and networks. We see this in the way Facebook generates shadow profiles with information provided by your friends and acquaintances, even if you’ve never had a Facebook account. It doesn’t matter how cautious you are about protecting your own data: As long as you are connected to other people, quite a lot can be inferred about you from your network connections, or assembled from bits that you share with people to whom you are connected.

Nowhere is this more true than with genetic data. When DNA identification started being used by police, civil-liberties and privacy activists in many countries forced stringent restrictions on whose DNA could be collected, and under what circumstances it could be kept and catalogued. But now, effectively, everyone’s genome is public. It was noticed a few years back that it was possible to identify (or de-anonymize) participants in the Personal Genome Project, by drawing on patterns of information in their phenotypes. Here’s a more recent discussion of the issue. But those people had knowingly allowed their genotypes to be recorded and made publicly available. In the Golden Gate Killer case we see that random samples of genetic material can be attributed to individuals purely based on their biological links to other people who volunteered to be genotyped.

The next step will be, presumably, “shadow genetic profiles”: A company like GEDmatch — or the FBI — could generate imputed genetic profiles for anyone in the population, based solely on knowledge of their relationships to other people in their database, whether voluntarily (for the private company) or compulsorily (FBI).

Human political magenim

The magen David, the “shield of David”, also known as the six-pointed Jewish star, is probably the best designation for the cringing role that the UK Jewish establishment has taken in recent weeks. Despite having a Tory prime minister who  recycles Nazi rhetoric to attack Brexit opponents, and a Conservative press that has recently been spreading antisemitic conspiracy theories about George Soros, and despite clear evidence that antisemitic attitudes in the UK are concentrated primarily on the right, the British Jewish establishment decided they absolutely needed to organise a march on parliament to address the burning issue of a six-year-old Jeremy Corbyn tweet about a political mural depicting greedy capitalists playing games on the backs of the poor. (Sometimes a greedy ruthless is just a ruthless capitalist…)

I warned the president of our synagogue at the time — when the synagogue sent out an official email advertising the demonstration — that it looked to me like the Jewish community was being manipulated by people who do not have our best interests at heart. And sure enough, we now have the government’s chief propaganda officer (officially environment minister) Michael Gove arguing that the government really didn’t do anything so terrible in hounding and deporting elderly Black people, because the real scandal is Jeremy Corbyn’s six-year-old tweet. The Jews and their concerns have become a political shield for the government, and a weapon against other minority groups who have suffered real and extraordinary injury at the hands of that government.

Antisemitism is a real issue in this country, but it is not ever and always the most salient form of racism. Allowing it to become identified with one political party, and used as a weapon to attack the interests of other minority groups, is not going to serve the long-term interests of British Jews, or British democracy.

Screenshot 2018-05-01 09.41.18

 

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