Suppose we had a single entity -- a poem, for example. That poem, while single, is also multiple. It is multiple in meanings. We would expect as many understandings of a good poem as there are readers of that poem. Does this mean that the poem can mean anything? No -- there are ways we can give a poem the wrong meaning. There is a mean of meanings that are well within the realm of what the poem can mean, though it may be no mean feat to determine that mean. We would expect the various meanings to have some element of similarity, though a new insight can shift the center of meaning for many. Just because there are some whose understandings of the poem belong in the long tail of strangeness, that does not mean there aren't better and worse ways of understanding what a poem means. The exception does not negate the rule. THe true meanings group among the mean.