Cool guys, thanks.
I'm going to go through here point by point.
Theoretical-
Confirmation bias is absolutely part of what's happening and I'm not at all surprised to hear that the advocates of disposable diapers would happily knife me in a back alley. However, I think it goes a step deeper than mere confirmation bias. It seems to me there's an identity element. Our passionate advocate for overhead camshafts, for example, wasn't really as interested in being right as he was in showing off how his preference for OHC engines just sort of automatically made him a sophisticated, worldly gentleman. I'd assume diaper wars are similar and I'm certain the iOS/Android thing is, too.
"To like such and such completely trivial thing makes me a morally superior being."
This is a more traditionally philosophical topic, and one that is very much in my thesis as well, but we can see a similar pattern playing out in Hannah Arendt's book "Eichmann in Jerusalem." (The book is excellent and I recommend it, btw) It's about the trial of a Nazi war criminal who'd been kidnaped in South America and then secretly shipped back to Israel. Anyway, almost everyone involved wanted Eichmann to be this diabolical genius who ate babies and controlled volcanoes with his brain. Instead, they got a transparently shallow and vaguely stupid man with a runny nose, bad posture and a tendency to go off on poorly informed theological tangents to his interrogators. His path to Nazi infamy had been one of brainless conformity and automatic reverence for authority. Arendt reported the trial as such, explaining that evil requires nothing special at all and is often, and most devastatingly, produced by a simple lack of thought.
Upon publication, the public went absolutely ape-E36 M3 condemning Arendt. Eichmann had to be a monster. How could you dare to portray him as a human? Don't you know that we normal people are incapable of doing bad things? How dare you draw comparisons between us inevitably good people and inevitably evil people like the Nazis?
In short, people seem much more interested in being "automatically" good/smart/civilized/superior/whatever than actually performing the actions need to become good/smart/civilized/superior/whatever. I think our DOHC snob was manifesting that a little bit.
RevRico,
This might be a little farther out into the weeds than you want to go, and generally speaking I agree with you, BUT ...
When was the last time you had a non-subjective experience of anything? In other words, I'm not so sure truth can ever be as independent of people with toasters as you seem to think.
(Also, thanks for the offer. I'm honored. :) )
Ransom,
That's a really interesting point I hadn't thought of. There doesn't really seem to be a clear division between "simply mistaken" things like me accidentally spelling potato as potatoe and "moral judgment wrong" things like kicking old ladies. I think, provisionally, that it might be because our categories of moral wrongness and simply mistaken are both composed of stuff that threatens our groups in some way. The only difference being magnitude. Crappy spelling is a tiny, almost trivial way to lower social standards of behavior in one small area. Kicking old ladies is a threat to major rules of behavior, the lives of old ladies, the structures of the families of those affected etc. Ie, the magnitude is much higher in the secon, but the wrongness is in principle similar.
Torkel,
I couldn't agree more. The internet is seemingly designed to encourage a-hole behavior.
Appleseed/Alfadriver/PeteGosset,
I agree that the movement of the discussion from something that is mostly science (ohv/dohc) to something is moralizing and aesthetic is highly questionable and more or less bound to get stupid. However, I wonder if we might not be overestimating the capabilities of science.
To take the Porsche 911 example, science "tells us" it's designed wrong but only if we non-scientifically decide that we prioritize going fast around a racetrack. If we tell science that we love the feeling of a pendulum effect, mid engines are "scientifically wrong." If we tell science that we want a car that handles almost as well as a mid engined car and puts down power better than a front engined car, but that we also want a lot of interior space relative to the size of the car overall - that is we want four seats and decent storage in our otherwise tiny sports car - I'm not sure you can do better than a rear engined layout with a boxer configuration. If we tell science that we want to make our car out of discarded textiles and chicken wire, on the other hand, a Trabant is a scientifically wonderful car.
This gets to Alfa's problem with power and politics. Science is amoral, possesses no inherent direction and has no values. Yes, we can use science to preserve rainforests, feed the orphans and extend lifespans but we can just as easily use it to cover the earth in machines, eliminate undesirable populations and procure sacrifices for the dread gods of the Aztec. Science is, in other words, strictly a tool. Your frustration, I assume, is that people are saying that they are interested in using science for goal X (a better SUV or whatever) and they are actually using science to make an SUV that will result in their getting more political influence. I totally sympathize with your frustrations, but the person's decision to prioritize political influence with the design is no less "scientific" than your decision to prioritize safety/reliability/whatever else. That said, lying about your goals is generally crappy leadership and a great way to destroy morale so yeah, I'm taking your side in this conflict. ;)
This connects with Pete's point. I don't think science is actually the only way we can use moral judgments to go from useful to stupid discussions. For example, I assume we can all agree that liking or disliking Shakespeare is a non-scientific thing. People can and do have useful intelligent discussions about Othello and King Leer all the time. However, the instant I explain that liking King Leer betrays a scandalous personality or that enjoying Othello makes you a paragon of virtue, we're deep into idiot territory.
Wow, that's long. :P