There's been a couple of interesting programs on the TV in the last week or so. One looked at the question of whether some races are less intelligent than others, and one last night looked at whether people of mixed race have a genetic advantage.
I don't want to discuss those two subjects, or at least, not in this thread. But it did make me wonder .... should any subject be off-limits to science?
On the one hand, if you ask awkward questions, you might have to deal with uncomfortable answers. And by "ask questions" I mean ask in a rigorous, structured scientifically valid way, aimed at coming up with evidence-based answers. For instance, if you ask whether one race is more intelligent than another, what are you supposed to do with the information if there were evidence to show it was the case? Or wasn't.
The other question about mixed race people having advantages certainly does seem to have some strong evidence-based basis, though no doubt the BNP and the like won't like it much. For instance, in our DNA, we have certain characteristics or traits that provide an ability to resist bacteriological infection. If you are homozygous in that trait, it means you have two identical copies of the alleles in that gene. If you're heterozygous for that gene, you have two different alleles and evidence shows that that confers a greater ability to fight infection.
Also, it's pretty well accepted that close inbreeding can cause some, erm .... unfortunate results. The reason is that the smaller the gene pool, the larger the chance of reinforcing variant genes that cause undesirable results, like susceptibility to some really nasty genetic disorders and disabilities. By direct implication, the wider the gene pool, the lower the chances of a coincidental reinforcing of those genes.
There was a study a few years ago that showed that British Pakistanis represented abut 3% of the birth rate, but about a third of such serious genetic disorders, and the likelihood of such problems was about 13 times the national norm. The result was attributed (and I have no idea whether rightly or wrongly) to the practice of first cousin marriages. And that resulted in dome calls for that to be banned.
Which brings me back to my actual question ..... should some topics be taboo for science? What do we do, for instance, if science were to show that a particular issue had a serious genetic effect (such as serious genetic disorders), but that that practice has deep-rooted cultural or religious origins?
Incest is illegal in most if not all countries, and the reason for that is, at least in large part, genetic. We worked that much out even before we had a science of genetics. But what if a scientific study were to show that mixing races had significant genetic advantages? What if the principle of "hybrid vigour" were to run true in humans, as indeed it demonstrably does in plants, and has in some animal communities where studies have been done, so it probably does in humans too.
Any scientist that tried to suggest that we should have an actual policy of mixing the races is likely to have proud ethnic minorities standing side-by-side with the BNP and white supremacists, all baying for the blood of the scientist.
And it's a serious question, and a serious threat. It was exactly such attempts to engineer society on genetic grounds that led to the likes of the eugenics programs to "improve" the race, and the the Nazi's attempts at creating an Aryan master race by genocide.
So on the one hand, my view is that facts are facts and that science is neutral. If we find out that this effect or that is scientifically valid, then it's for society to use or abuse that knowledge. That suggests that all knowledge is good.
On the other hand, what if we found out that there is a different in intelligence between races. Whoever ends up more racially intelligent, someone's going to end up feeling superior and someone inferior because of it, and over something we can't affect anyway. You also risk handling ammunition to extremist groups. So why ask the question if the answer can't help and could be dangerous?
So should science avoid asking some questions, because the answers could be explosive, and perhaps either mean that we can't do anything about it, or if we try (as with eugenics) we end up with a cure worse than the problem?
Science, even if it's 100% impartial and objective, doesn't exist in a vacuum. If it asks questions, the results may have a social effect and not necessarily a positive one. I don't like the idea of self-censorship of science, but if asking questions blindly ignoring the potential social effects risks opening Pandora's box, is it a responsible thing to do?
Please note : this thread is not about racism, or race and intelligence, or the BNP, or about genetics and genetic disorders. They are used as examples of a socially dangerous area for science to ask questions about. If you want to discuss those, please open your own thread. This is about what science should or shouldn't look at.