This is one of the objectively most wrong comments that's ever been written. A hell of a lot of people went to gas chambers, gulags, and death camps believing this sort of pure, undiluted bullshit (of the highly-dangerous-to-continuing-health variety). Just think about it. You wrote:
So it is with opposing viewpoints. Policy debates should not appear one-sided. If you do not understand how an intelligent, well-meaning person can have a position, and it's a position that lots of people actually hold, then you do not understand the position yet.
So, if you were defending Jews in 1930s Germany, by this "reasoning," you'd be wrong. If you were defending runaway slaves in 1850s America, same thing. If you are defending American prisoners in today's America, same thing.
Even a semi-literate reading of History shows us that the consensus is very often wrong, for reasons exposed scientifically by Milgram's famous "false electroshock" or "obedience to authority" experiment(s). To find out more about why and how the consensus has been wrong, you need to learn the first thing about the Enlightenment, and how it was different from the even more wrong medieval time periods. (For example, religion isn't a good source of authority, and resulted in over 800 years of "trial by ordeal" in England, among creatures whose neocortices were at least as developed as our own.)
...Unless the point you're making is that we've reached the pinnacle of democratic organization in our society. That's a claim I'd be happy to debate, seeing as to how in the North in 1850 there was no "voir dire" but there was such a thing in 1851, (and still is) and the Fugitive Slave Law was unenforceable for the first part of 1851, and became enforceable after voir dire was instated. Voir dire is still what has allowed prosecutors to enforce the laws that libertarians (such as Eliezer Yudkowsky) see as illegitimate, to this day. (He may or may not know that, but that's in fact the mechanism.)
I think you are seriously misinterpreting thomblake's comment.
So, if you were defending Jews in 1930s Germany, by this "reasoning," you'd be wrong. If you were defending runaway slaves in 1850s America, same thing. If you are defending American prisoners in today's America, same thing.
No, he'd be right. A position's popularity doesn't guarantee its correctness. That being said, it would be a mistake to claim he'd be obviously right; that just isn't the case, or else there wouldn't have been so many people arguing for the consensus position in...
People go funny in the head when talking about politics. The evolutionary reasons for this are so obvious as to be worth belaboring: In the ancestral environment, politics was a matter of life and death. And sex, and wealth, and allies, and reputation . . . When, today, you get into an argument about whether “we” ought to raise the minimum wage, you’re executing adaptations for an ancestral environment where being on the wrong side of the argument could get you killed. Being on the right side of the argument could let you kill your hated rival!
If you want to make a point about science, or rationality, then my advice is to not choose a domain from contemporary politics if you can possibly avoid it. If your point is inherently about politics, then talk about Louis XVI during the French Revolution. Politics is an important domain to which we should individually apply our rationality—but it’s a terrible domain in which to learn rationality, or discuss rationality, unless all the discussants are already rational.
Politics is an extension of war by other means. Arguments are soldiers. Once you know which side you’re on, you must support all arguments of that side, and attack all arguments that appear to favor the enemy side; otherwise it’s like stabbing your soldiers in the back—providing aid and comfort to the enemy. People who would be level-headed about evenhandedly weighing all sides of an issue in their professional life as scientists, can suddenly turn into slogan-chanting zombies when there’s a Blue or Green position on an issue.
In artificial intelligence, and particularly in the domain of nonmonotonic reasoning, there’s a standard problem: “All Quakers are pacifists. All Republicans are not pacifists. Nixon is a Quaker and a Republican. Is Nixon a pacifist?”
What on Earth was the point of choosing this as an example? To rouse the political emotions of the readers and distract them from the main question? To make Republicans feel unwelcome in courses on artificial intelligence and discourage them from entering the field?1
Why would anyone pick such a distracting example to illustrate nonmonotonic reasoning? Probably because the author just couldn’t resist getting in a good, solid dig at those hated Greens. It feels so good to get in a hearty punch, y’know, it’s like trying to resist a chocolate cookie.
As with chocolate cookies, not everything that feels pleasurable is good for you.
I’m not saying that I think we should be apolitical, or even that we should adopt Wikipedia’s ideal of the Neutral Point of View. But try to resist getting in those good, solid digs if you can possibly avoid it. If your topic legitimately relates to attempts to ban evolution in school curricula, then go ahead and talk about it—but don’t blame it explicitly on the whole Republican Party; some of your readers may be Republicans, and they may feel that the problem is a few rogues, not the entire party. As with Wikipedia’s NPOV, it doesn’t matter whether (you think) the Republican Party really is at fault. It’s just better for the spiritual growth of the community to discuss the issue without invoking color politics.
1And no, I am not a Republican. Or a Democrat.