Much like sonder, theory of mind is the idea that other's also have a mind, and that we can be aware of others' perspective, beliefs and desires. It says that the mind is the only thing being directly observed, and that we can see our own mind through introspection.
Problem solving principle that typically the simplest solution is the right one; the solution that makes the least assumptions.
Tendency to over-emphasize personality to explain behavior, over systematic influence
Tendency to search for information that reinforces one's own beliefs
Tendency to attribute success to themselves and failures to others
Tendency to follow one's own belief in the truthiness of an argument when evaluating the logical strength of someone else's argument
Tendency to view past events as predictable