Aumann's agreement theorem can be informally interpreted as suggesting that if two people are honest seekers of truth, and both believe each other to be honest, then they can update on each other's opinions and quickly (in one step) reach agreement. The very fact that a person believes something is Rational evidence that that something is true, and so this fact should be taken into account when forming your belief.
- Reasonable Disagreement by Nicholas Shackel
- Agreeing to Agree by Hal Finney
- You Are Never Entitled to Your Opinion by Robin Hanson
- Normative Bayesianism and Disagreement by Nicholas Shackel