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Re: Words, images, color combinations all evoke schemas
I think it has to do with the right brain. The left side of the brain is more logical and analytical. The right side of the brain is more spatial. Metaphors evoke a sense of spatial awareness. The metaphor is not trying to generate a one-to-one connection i.e., a=b, but evokes an expansion connection, where a=b=c=d=e=f, etc.. This fuzziness is not as useful for the left brain since it would prefer something more distinct like a=b. But the right brain uses an extrapolation of associations.
For example, an integrated ecosystem is a 3-D structure. It may not be obvious how fox droppings benefits the birds, since they don't eat it. One has to trace all the steps from dung, to plant, to flowers, to bugs to birds. The metaphor sort of uses the right brain to process this train of connections within the 3-D memory. One doesn't even have to be fully conscious of all the steps but it can occur intuitively. Reading a poem at a normal pace does not allow enough time to rationally extrapolate each step. It has to occur in a faster way using the 3-D memory processing. The left brain prefers 1 to 1. It will focus on the bug to bird connection because this is far more logical and can be addressed in or out of the context of 3-D.
Metaphors often contain common sense, which is the intuitive 3-D composite of experience and schema. An analogy are ten caucasians going to China. Each person will see 1000 different people. The final 3-D memories in each, will be the 3-D composite of each data set. When averaged in 3-D, they all will share an inner common sense. Bring in one additional chinese person and they all intuitively know without a long train of logic. The left brain does it differently. It will seek rational connections and then the group will try to create a consensus of opinion. We can end with two schools of thought such that 3-D common sense is replaced by either consensus/opinion.
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