Harry Potter and the Methods of Rationality

Harry spent the day in his trunk so as not to spoil it for anyone else, eating snack bars in place of meals, reading some of his sadder science fiction books (no fantasy), and writing a letter to Mum and Dad that was much longer than the ones he usually sent.

Chapter 30: Working in Groups, Pt 1

J. K. Rowling if a man tries to bother you, you can think blue, count two, and look for a red shoe.

The day was Sunday, November 3rd, and soon the three great powers of their school year, Harry Potter, Draco Malfoy, and Hermione Granger, would begin their struggle for supreme dominance.

(Harry was slightly annoyed by the way the Boy-Who-Lived had been demoted from supreme dominance to one of three equal rivals just by entering the contest, but he expected to get it back soon.)

The battleground was a section of non-Forbidden forest, dense with trees, because Professor Quirrell thought that being able to see all the enemy forces was too boring even for your very first battle.

All the students who were not actually in a first-year army were camped out nearby and watching on screens that Professor Quirrell had set up. Except for three Gryffindors in their fourth year, who were currently sick and confined to healer's beds by Madam Pomfrey. Aside from that, everyone was there.

The students were dressed, not in their ordinary school robes, but in Muggle camouflage uniforms that Professor Quirrell had obtained somewhere and supplied in sufficient quantity and variety to fit everyone. It wasn't that students would have worried about stains and rips, that was what Charms were for. But as Professor Quirrell had explained to the surprised wizardborns, nice dignified clothing was not efficient for hiding in forests or dodging around trees.

And on each uniform's breast, a patch bearing the name and insignia of your army. A small patch. If you wanted your soldiers to wear, say, colored ribbons so that they could identify each other at a distance, and risk the enemy getting their hands on the ribbons, that was all up to you.

Harry had tried to get the name Dragon Army.

Draco had pitched a fit and said that would confuse everyone completely.

Professor Quirrell had ruled that Draco could lay prior claim to the name, if he wished.

So now Harry was fighting Dragon Army.

This probably wasn't a good sign.

For their insignia, instead of the too-obvious dragon's head breathing fire, Draco had elected to simply go with the fire. Elegant, understated, deadly: This is what's left after we've passed. Very Malfoy.

Harry, after considering alternate choices such as the 501st Provisional Battalion and Harry's Minions o' Doom, had decided that his army would be known by the simple and dignified appellation of the Chaos Legion.

Their insignia was a hand poised with fingers ready to snap.

It was universally agreed that this wasn't a good sign.

Harry had earnestly advised Hermione that the young boys serving under her were probably nervous about her being a girl with a reputation for being nice, and that she should pick something scary that would reassure them of her toughness and make them proud to be part of her army, like the Blood Commandos or something.

Hermione had named her army the Sunshine Regiment.

Their insignia was a smiley face.

And in ten minutes, they would be at war.

Harry stood in the bright forest clearing that was their assigned starting location, an area of open space with old and rotting tree stumps that had been cleared away for some unknown purpose, ground coated with a small scattering of blown leaves and the dried grey remnants of grass that had failed the test of summer's heat, and the sun shining down brilliantly from above.

Around him were the twenty-three soldiers that Professor Quirrell had assigned to him. Nearly all of Gryffindor had signed up, of course, and more than half of Slytherin, and less than half of Hufflepuff, and a handful of Ravenclaw. In Harry's army there were twelve Gryffindors and six Slytherins and four Hufflepuffs and one Ravenclaw besides himself... not that there was any way to tell that by looking at the uniforms. No red, no green, no yellow, no blue. Just Muggle camouflage patterns, and a patch on the breast with the device of a hand poised to snap its fingers.

Harry looked upon his twenty-three soldiers, all wearing the same uniforms with no marks of group identity save that single patch.

And lo, Harry smiled, because he understood what this part of Professor Quirrell's master plan was about; and Harry was taking full advantage of it for his own purposes, too.

There was a legendary episode in social psychology called the Robbers Cave experiment. It had been set up in the bewildered aftermath of World War II, with the intent of investigating the causes and remedies of conflicts between groups. The scientists had set up a summer camp for 22 boys from 22 different schools, selecting them to all be from stable middle-class families. The first phase of the experiment had been intended to investigate what it took to start a conflict between groups. The 22 boys had been divided into two groups of 11 -

- and this had been quite sufficient.

The hostility had started from the moment the two groups had become aware of each others' existences in the state park, insults being hurled on the first meeting. They'd named themselves the Eagles and the Rattlers (they hadn't needed names for themselves when they thought they were the only ones in the park) and had proceeded to develop contrasting group stereotypes, the Rattlers thinking of themselves as rough-and-tough and swearing heavily, the Eagles correspondingly deciding to think of themselves as upright-and-proper.

The other part of the experiment had been testing how to resolve group conflicts. Bringing the boys together to watch fireworks hadn't worked at all. They'd just shouted at each other and stayed apart. What