Related on OB: Taboo Your Words
I realize this seems odd on a blog about rationality, but I'd like to strongly suggest that commenters make an effort to avoid using the words "rational," "rationality," or "rationalist" when other phrases will do. I think we've been stretching the words to cover too much meaning, and it's starting to show.
Here are some suggested substitutions to start you off.
Rationality:
- truth-seeking
- probability updates under bayes rule
- the "winning way"
Rationalist:
- one who reliably wins
- one who can reliably be expected to speak truth
Are there any others?
Words can become less useful when they attach to too much as well as too little. A perfectly drawn map that indicates only the position and exact shape of North America will often be less useful than a less-accurate map that gives the approximate location of its major roads and cities. Similarly, a very clearly drawn map that does not correspond to the territory it describes is useless. So defining terms clearly is only one part of the battle in crafting good arguments; you also need terms that map well onto the actual territory and that do so at a useful level of generality.
The problem with the term "rationality" isn't that no one knows what it means; there seems to be wide agreement on a number of tokens of rational behavior and a number of tokens if irrational behavior. Rather, the problem is that the term is so unspecific and so emotionally loaded that it obstructs rather than furthers discussion.