If [Luther and Emperor Charles V] had agreed ... or if the emperor had been indifferent ... the trial would not have been held and we would have heard nothing about the views of the pope. There would have been no mention of this belief at all; it would not even have appeared to be a belief. In other words, the act of belief is always an act against; it requires an opponent who holds the contrary belief.Do you see Marc Morano in there? I sure as Shinola do. Marc wants us to play advocate's devil while he play's devil's advocate. It's all too easy of a trap to fall into. Look at what the well-intentioned P Z Myers and Richard Dawkins do constantly in their ironic crusade for atheism. They play the game perfectly, making victory over superstition impossible by falling into the trap of absolutism and tribalism. (Of course, this dynamic is aided by the fact that they genuinely see nothing of value in their opponents' position. I would say that anyone who sees nothing at all of value in their opponents' position should refrain from arguing with them as they will thereby serve their opposition's purposes as much as their own.)
This feature of belief is hardly limited to Christianity. How could there be Sunnni Muslims if there were no Shia? Would Israeli settlers have been so vocal in declaring G-d's promise considering the land of Judea and Samaria if Palestinians had not thought it was they to whom it belonged? Could American Patriots have flourished during the cold war in the absence of their Soviet counterparts?
Belief systems thrive in circumstances of collision. For every believer there is a nonbeliever on whom the believer is focused, whose resistance is carefully delineated. We could go so far as to say that belief is so dependent on the hostile other that it may need to stimulate the other's active resistance. Belief has a confrontational element built into itself that is essential to its own vitality. If believers need to inspire fellow believers to hold firmly to their position, they need just as much to inspire nonbelievers to hold to theirs.
For this reason, belief systems are territorial. They stand off from all others and rarely do they overlap. (Note how often countries go to war, or threaten war, over disputed boundaries - Kosovo, Taiwan and Kurdistan, for example, or for that matter the American Civil War.) They act variously as factions, states, blocs, interest groups, parties, ethnicities, and schools of thought. Each of these has its comprehensive network of beliefs that offers a thorough analysis and assessment of itself and its opponents. Even self-defined ethnic groups have more than just a (presumed) shared genetic heritage; they have developed a convincing characterization of their persecutors, and they have elaborate explanations for their superiority or purity and detailed histories that justify it all. Just as they share with most other varieties of belief system a panoply of heroes and martyrs, sacred sites, scriptural texts, and binding rituals, their rivals fall under similar, but reversed characterizations. They are schismatics, breakaway groups, racists, apostates, fallen backsliders, subversives, false ideologues, forces of evil, aggrandizing powers, intolerant majorities, all of whom are dedicated to the repression and destruction of one's own group of believers. They are in every respect other, but in this case a hostile other.
Second, because belief is always belief against, it is itself an act of unbelief. Itis the active refusal to take a rival position. To believe something, one must disbelieve something. Each belief must not only have an opponent; it must have an opponent whose disbeliefs are a perfect match. For this reason, each is largely defined by its opposite. If beliefs die when their opposition disappears, they are obliged to mimc any changes the opposition makes of itself. Belief and unbelief are therefore locked into mutual self-creation. Imagine if Luther, under the urging of the emperor and the attending theologians, shrugged his shoulders and said, "Fine. I can alter my position to accord with yours." Should they still be determined to call him a heretic, they must then search out a new issue over which they can nourish their rejection of each other. Failing that, whatever the content or the intensity of their beliefs, the act of believing becomes meaningless.
What better example can we offer than the way that the great belief systems of our age have painstakingly elaborated a portrait of their rivals. The Nazis presented a detailed account of the worldwide domination of "Jewish bankers" whose only goal was the economic subjugation of the rest of the earth. Radical Muslim sects have an almost farcical view of the "Zionist" program against Islam. In the United States, radical underground military groups find evidence everywhere that the government is developing a hidden couterforce to steal their freedoms. Conspiracy theories often operate in the conflicted encounter of belief systems. In American politics the opposing parties are as much antiliberal and anticonservative as they are liberal and conservative. Even a Supreme Court justice, Antonin Scalia, dissenting in a case that rejected the Texas law forbidding sodomy, referred to what he called "the homosexual agenda".
The point I wish to stress here is that in this case we have gone far beyond disagreement, even byond outright collision; both sides depend on the other to know what they believe. They are joined in a kind of compact that freezes them to a stable self-understanding consisting of a reverse image of the other. There is no middle ground, no dialogue that could result in modified doctrine and practice.
Every time we fall into the polarization trap we abandon science and slip into antisocial politics. We can't win the cause for reason by falling into unreasoned antipathy. We have to convince people that we are not who the opposition says we are, that indeed the position the opposition opposes does not exist. The first step is to avoid becoming who they say we are, regardless of the provocation.
Update: This is very much apropos why people on the fence find the UEA emails so off-putting.