Knowing what the Less Wrong wiki calls the dark arts allows one to either practice or avoid them. That is one way information that is not true can be valuable. Another way is to ‘fake it til you make it’ - to act confident (for example) if you know acting confident will help you achieve a goal even if your confidence is low. Valuable but not true information. See also a great deal of writing at LW and elsewhere about signaling.
Knowing what the Less Wrong wiki calls the dark arts allows one to either practice or avoid them. That is one way information that is not true can be valuable. Another way is to ‘fake it til you make it’ - to act confident (for example) if you know acting confident will help you achieve a goal even if your confidence is low. Valuable but not true information. See also a great deal of writing at LW and elsewhere about signaling.