Thanks for your generous reply. Maybe I understand the bailey and would need to acquaint myself with the motte to begin to understand what is meant by those who say it’s being ‘dethroned by the Bayesian revolution’.
Sorry for jargon. But it’s a useful concept, so here is the explanation:
A Motte and Bailey castle is a medieval system of defence in which a stone tower on a mound (the Motte) is surrounded by an area of pleasantly habitable land (the Bailey), which in turn is encompassed by some sort of a barrier, such as a ditch. Being dark and dank, the Motte is not a habitation of choice. The only reason for its existence is the desirability of the Bailey, which the combination of the Motte and ditch makes relatively easy to retain despite attack by marauders. When only lightly pressed, the ditch makes small numbers of attackers easy to defeat as they struggle across it: when heavily pressed the ditch is not defensible, and so neither is the Bailey. Rather, one retreats to the insalubrious but defensible, perhaps impregnable, Motte. Eventually the marauders give up, when one is well placed to reoccupy desirable land.
The writers of the paper compare this to a form of medieval castle, where there would be a field of desirable and economically productive land called a bailey, and a big ugly tower in the middle called the motte. If you were a medieval lord, you would do most of your economic activity in the bailey and get rich. If an enemy approached, you would retreat to the motte and rain down arrows on the enemy until they gave up and went away. Then you would go back to the bailey, which is the place you wanted to be all along.
So the motte-and-bailey doctrine is when you make a bold, controversial statement. Then when somebody challenges you, you retreat to an obvious, uncontroversial statement, and say that was what you meant all along, so you’re clearly right and they’re silly for challenging you. Then when the argument is over you go back to making the bold, controversial statement.
Thanks for your generous reply. Maybe I understand the bailey and would need to acquaint myself with the motte to begin to understand what is meant by those who say it’s being ‘dethroned by the Bayesian revolution’.
Sorry for jargon. But it’s a useful concept, so here is the explanation:
-- Motte and Bailey Doctrines
-- All In All, Another Brick In The Motte
The latter also contains a few examples.