Imagine the starship Enterprise, in anticipation of an attack, with its deflector shields up. It takes a lot of energy to maintain the deflector shields. We often use our existing knowledge as our own deflector shield, defending our knowledge, paradigm or opinion. And that requires energy potentially useful for other things. It may be difficult to realize that the basis for your existing knowledge may have changed or may have been incomplete when you drew your original conclusions, but remember to consider it as a possibility when you see an argument brewing—and use that energy instead to enlighten yourself.
Look at it this way: Often, you’ll have pieces A and B of a subject and someone else will have pieces C and D. You’ll both argue the differences of A and B versus C and D instead of sharing each other’s information to end up with A, B, C, and D. Instead of thinking “I already know that,” think “How does that contribute to or update what I already know?” The idea is to expand each other’s wealth of knowledge and experience, not to negate it.







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