Not all false information goes on to become a false belief -- meaning: a lasting state of incorrect knowledge -- and not all false beliefs are difficult to correct.
For example astronomy. If you were asked to explain the relationship between the Earth and the Sun, you might do so incorrectly, and a friend who understands astronomy might correct you. No big deal, you simply change your belief.
But in the time of Galileo, the view of the Earth-sun relationship was tied closely to ideas of the nature of the world, the self, and religion. If Galileo tried to correct your belief, the process wouldn't be as simple.
The crucial difference between then and now, is the IMPORTANCE of the Misperception.
When there's no immediate threat to our understanding of the world, we change our beliefs. Problems occur when that change contradicts something we hold as important.
False beliefs stem from issues closely tied to our conception of self. False beliefs, it turns out have a great deal to do with self-identity; What kind of person am I, and what kind of person do I want to be? This self-identity issue affects all ideologies.
Facts and evidence simply aren't that effective, given how selectively they are processed and interpreted. Strongly held beliefs continue to influence judgment, despite correction attempts … even with a supposedly conscious awareness of what is happening.
When someone believes something strongly, new information isn't going to change their mind.
They will simply disregard that information.
Learning this truth has helped me avoid many issue-related arguments.
I have finally come to realize that when someone strongly holds a belief that has clearly been proven to be incorrect, trying to get them to change their mind is a waste of my time. I can choose to share information if the opportunity arises, but if that information is rejected, its best to simply walk away.
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