23 December 2012

Newtonmas cards

A bit too late, but here are my Newtonmas cards again.





5 December 2012

Corruption index

I just read, via BBC, the existence of an indicator of a country's corruption, called corruption perceptions index, created by an organization called Transparency International (TI). Now, although I don't like single numbers for quality control, and although I have no opinion about this organization's methods and ethos, some of the numbers in their report seem to correspond to common sense:
Worldwide, Denmark, Finland [, New Zealand] and Sweden were seen as the least corrupt nations, while Afghanistan, North Korea and Somalia were perceived to be the most corrupt.
No surprises here. Also,
Greece [is the] 'most corrupt' EU country.
Again, this is not a surprise.

What I found rather surprising is the relatively good ranking of Bhutan, Uruguay, Chile and Botswana. Uruguay has a very interesting character as president, José Mujica, who is the world's poorest president, living a very simple life in a farm. In the case of Botswana, perhaps in the character of Precious Ramotswe we see a reflection of reality.

Another thing that is worth asking is this: the perception that Greek governments were corrupt is not new. In fact, I have a hunch that EU did know that Greece was corrupt all along and that the surprise they showed when it was revealed that Greece was faking its balance sheets was not honest. It was, simply, mutually convenient for corrupt Greek fovernment to fake its balance sheets (with the help of Wall Street companies) and for EU to accept them at face value. Convenient, as long as the shit hadn't hit the fan yet.

Also, it is nice to know that I live in the number 4, according to the report, least corrupt country (and hope they clean the roads soon, because the snow doesn't seem to stop falling).

Finally, and rather obviously,
TI believes there are strong correlations between poverty, conflict and perceived levels of corruption.

28 November 2012

The meaning of life


I'm looking for tasty food, besides the one I cook.

26 November 2012

Bertrand Russell's message to future generations

What would you think it’s worth telling future generations about the life you’ve lived and the lessons you’ve learned from it?

“I should like to say two things, one intellectual and one moral. The intellectual thing I should want to say is this: When you are studying any matter, or considering any philosophy, ask yourself only what are the facts and what is the truth that the facts bear out. Never let yourself be diverted either by what you wish to believe, or by what you think would have beneficent social effects if it were believed. But look only, and solely, at what are the facts. That is the intellectual thing that I should wish to say.

The moral thing I should wish to say… I should say love is wise, hatred is foolish. In this world which is getting more closely and closely interconnected we have to learn to tolerate each other, we have to learn to put up with the fact that some people say things that we don’t like. We can only live together in that way and if we are to live together and not die together we must learn a kind of charity and a kind of tolerance which is absolutely vital to the continuation of human life on this planet.”

Bertrand Russell, 1959

24 November 2012

"Necrophiliac" woman

A couple of days ago, it emerged that a 37-year old woman from Gothenburg was found to have lots of skeletons in her flat, material about necrophilia, photographs of a woman using skeleton parts, e.g., licking a skull. The police entered her flat for some different reason (there was a gunshot) and found the skulls, by coincidence. This Huffington post article (and lots of other newspapers) have the full story as well as photographs from her flat.

The woman was formally charged for the crime of "violating the peace of the dead".

The story reminded me of  "A nadder"'s posting on sexual ethics, claiming that
[n]ecrophilia should be legalised because we don’t have enough organ donors. I’m serious, bear with me. Organ donation rates are abysmal in countries that require people to opt in. Most choose the default (not opting in). Not even from laziness but because people have a cognitive bias of seeing defaults as reasonable, even if they’re ridiculous. The opt-in for donations is a misguided sentiment about human worth. Hundreds die needlessly every day for the sake of human dignity
and that
[t]he only way it would be wrong for the government to make use of your body after death (if you don’t leave instructions to the contrary) is if there was a You that survived death. Otherwise using the harm principle: there’s nobody around to be harmed so it can’t be wrong.
While it is sad that someone would choose to use skulls for sexual practices (yes, I wouldn't want to have her as my friend), I don't see, from a rational point of view, what the crime is. She did not do this in public. She did not share this with someone else who did not want to see it. She (presumably) obtained the skulls and bones legally. (If not, she should be charged for this! I have no clue how one could obtain skulls and bones, but let us assume it is possible...) Now, the argument that she violated the peace of the dead is irrational. It is the only one that may not form the basis of a legal charge, because there is no proof that such peace has been violated.

While I find the woman's practice disgusting, I can't claim we have the right to enter her flat and stop her. If she disturbs the neighbors, yes. There are many other disgusting practices for which people are not charged for crimes. Extreme body modification is such an awful practice. These people pierced a hole below their lips so the can have another exit for their tongues. Of course, they do this to attract attention. (But if we see an African woman with enlarged lips, we talk about different cultural practices which become the subject study of an anthropologist (or a preacher who will seek to convert them to the right faith).)

I think that neither the skeleton-collecting woman nor the people who modify their bodies are commiting crimes. (Compare this to the state: it thinks that the former do commit a crime, but the latter do not.) I don't like either of them and one may wonder if society has to play a role for their decisions, or if it is something in their DNA that makes them behave this way. Be it as it may, a scientific inquiry of these practices is more appropriate than putting them in jail.




T H E B O T T O M L I N E

What measure theory is about

It's about counting, but when things get too large.
Put otherwise, it's about addition of positive numbers, but when these numbers are far too many.

The principle of dynamic programming

max_{x,y} [f(x) + g(x,y)] = max_x [f(x) + max_y g(x,y)]

The bottom line

Nuestras horas son minutos cuando esperamos saber y siglos cuando sabemos lo que se puede aprender.
(Our hours are minutes when we wait to learn and centuries when we know what is to be learnt.) --António Machado

Αγεωμέτρητος μηδείς εισίτω.
(Those who do not know geometry may not enter.) --Plato

Sapere Aude! Habe Muth, dich deines eigenen Verstandes zu bedienen!
(Dare to know! Have courage to use your own reason!) --Kant