During a recent discussion with komponisto about why my fellow LWers are so interested in the Amanda Knox case, his answers made me realize that I had been asking the wrong question. After all, feeling interest or even outrage after seeing a possible case of injustice seems quite natural, so perhaps a better question to ask is why am I so uninterested in the case.
Reflecting upon that, it appears that I've been doing something like Eliezer's "Shut Up and Multiply", except in reverse. Both of us noticed the obvious craziness of scope insensitivity and tried to make our emotions work more rationally. But whereas he decided to multiply his concern for individuals human beings by the population size to an enormous concern for humanity as a whole, I did the opposite. I noticed that my concern for humanity is limited, and therefore decided that it's crazy to care much about random individuals that I happen to come across. (Although I probably haven't consciously thought about it in this way until now.)
The weird thing is that both of these emotional self-modification strategies seem to have worked, at least to a great extent. Eliezer has devoted his life to improving the lot of humanity, and I've managed to pass up news and discussions about Amanda Knox without a second thought. It can't be the case that both of these ways to change how our emotions work are the right thing to do, but the apparent symmetry between them seems hard to break.
What ethical principles can we use to decide between "Shut Up and Multiply" and "Shut Up and Divide"? Why should we derive our values from our native emotional responses to seeing individual suffering, and not from the equally human paucity of response at seeing large portions of humanity suffer in aggregate? Or should we just keep our scope insensitivity, like our boredom?
And an interesting meta-question arises here as well: how much of what we think our values are, is actually the result of not thinking things through, and not realizing the implications and symmetries that exist? And if many of our values are just the result of cognitive errors or limitations, have we lived with them long enough that they've become an essential part of us?
I didn't read Guns, Germs and Steel, but I read the synopsis on Wikipedia. My impression is that Diamond discusses the reasons why civilization developed in Europe (rather than elsewhere) in the past. The synopsis on Wikipedia does not, however, discuss anything relevant to why Africa has been unable to pick up civilization after it has already been developed. Are you aware of a synopsis of Diamond's argument that addresses specifically that?
I gave the example of Singapore specifically because it is a country that grew from virtually nothing to prosperity in a matter of decades. Japan and Taiwan could also be used as examples, and China is not faring too bad either. There are still a large number of countries in Asia that are dysfunctional, but many countries, some of them very large, have picked up the lessons of what works, and have applied them, or are now applying them, to create a functional civilization.
This, however, is not happening in Africa, nor in Caribbean (where independent), nor in the Philippines, nor in the Bronx - nor anywhere with a majority of largely African descent.
In all these places, the reverse process took place. The locals took control away from colonizing foreigners, and then instead of a proliferation of prosperity, it all broke down and fell apart. Why is that?
The short answer is: their average IQ is 70.
The long answer is:
http://www.amazon.com/dp/159368021X
If you want to be shocked some more, follow an international news source such as BBC for a few years, and pay attention to news from Africa and the Caribbean. The pieces will fall in place in time.
I disagree, my current best estimate is the low 80s. The main reasons for this is various factors like parasites lowering IQ and lingering iodine and micro nutrient deficiencies have been empirically demonstrated to have measurable impacts on cognition and these factors are a bigger problem in Africa than elsewhere. Another reason is the analysis of other authors who tried to disprove his claims by using other tricks to try to infer g and the equivalent IQ (but could only rig the IQs up to the high 80s).