Feature: trigger anchoring bias

[gwern]

Possible idea: generate a random number between 0-100 and display it
prominently somewhere in the UI. The point is to try to trigger
anchoring bias (https://en.wikipedia.org/wiki/Anchoring) - in this case the really objectionable form of anchoring where demonstrably irrelevant or randomly generated numbers still affect you.

Specifically, it could be added between the logo and the search box, perhaps in color like red: 'Random number: X%', with 'random number' being a hyperlink to the Wikipedia article (hopefully sufficient explanation).

For bonus points, the random number associated with every prediction could be stored, and then after a few score or hundred judged predictions, there'd probably be enough data that it could be analyzed and the extent of one's anchoring revealed.