A measure for crackpots
Last night at a party, a few of us were discussing some recent self-published books by crackpots that we’ve seen or had pushed on us. We noted that these books seem to have in common a few features. They seem to often have long rambling introductions that are missing key elements like thesis statements or an indication of what the book is about. They use words in non-standard ways, yet don’t bother to explain how they are being redefined. They claim that the author has some special knowledge, yet don’t provide any reason to believe it is the case. I had a dim recollection of having come across a “crackpot index” before somewhere, and a little bit of searching yielded Fred J. Gruenberger’s December 1962 publication from the RAND Corporation titled “A Measure for Crackpots” (PDF), which offers the following scoring mechanism for distinguishing the scientist from the crackpot: 1. Public verifiability (12 points) Scientists promote public verifiability; crackpots rely on revealed truth. 2. Predictability (12 points) Scientists promote predictability and track their record of failure as well as success; crackpots promote wild predictions and count only successes, not failures. 3. Controlled experiments (13 points) Scientists promote controlled experiments; crackpots avoid them. 4. Occam’s razor (5 points) Scientists prefer the simplest explanation that covers all the facts; crackpots enjoy wildly complex theories. 5. Fruitfulness (10 points) Scientists prefer theories that generate new ideas and new experiments; crackpots prefer theories that produce nothing of value for further research. 6. Authority (10 points) Scientists seek the endorsement and validation of known authorities and tend to obtain it if their work is valid; crackpots usually fail to obtain it. 7. Ability to communicate (8 points) Scientists tend to promote clear (if sometimes dull) communications through approved channels; crackpots tend to be incomprehensible and self-published. 8. Humility (5 points) Humility is a desirable (if sometimes lacking) trait in scientists; it is rare in the crackpot. 9. Open mindedness (5 points) Scientists tend to qualify and carefully couch their statements as tentative based on the current evidence; crackpots tend to make absolutely certain statements that may not be challenged. 10. The Fulton non sequitur (5 points) I’m more familiar with this as the “Galileo Gambit,” or the common crackpot claim that “They laughed at Galileo; they’re laughing at me; therefore I’m right just as Galileo was.” Gruenberger uses steamboat inventor Robert Fulton in place of Galileo. This logically invalid argument is refuted by the Bozo rejoinder, which is that “they also laughed at Bozo the clown.” This is a negative test, lack of the characteristic is 5 points, presence is 0. 11. Paranoia (5 points) Another negative test–crackpots tend to be paranoid about their ideas being actively suppressed by conspiracy. 12. The dollar complex (5 points) Another negative test. The crackpot claims immeasurable value for his discoveries as revolutionary, worthy of the Nobel prize, and world-changing. 13. Statistics compulsion (5 points) The crackpot tends to use and continuously explain statistics allegedly supporting his claim, while the scientist tends to use standard methods and assume the reader is familiar with them. Gruenberger’s index is focused on science crackpots rather than philosophy crackpots, but a number of the above features do apply to the books we were talking about. A more recent “Crackpot Index," also focused on physics, was created by John Baez, a mathematical physicist at the University of California, Riverside: ...