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"Infants and animals, however, are free of the emotional biases that color the reasoning of adults because they haven't yet developed (or won't, in the case of animals) the meta-cognitive abilities of adults, i.e., the ability to look back on their conclusions and form opinions about them. Infants and animals are therefore forced into drawing conclusions I consider compulsory beliefs—"compulsory" because such beliefs are based on principles of reason and evidence that neither infants nor animals are actually free to disbelieve.
This leads to the rather ironic conclusion that infants and animals are actually better at reasoning from evidence than adults. Not that adults are, by any means, able to avoid forming compulsory beliefs when incontrovertible evidence presents itself (e.g., if a rock is dropped, it will fall), but adults are so mired in their own meta-cognitions that few facts absorbed by their minds can escape being attached to a legion of biases, often creating what I consider rationalized beliefs—"rationalized" because adult judgments about whether an idea is true are so often powerfully influenced by what he or she wants to be true. This is why, for example, creationists continue to disbelieve in evolution despite overwhelming evidence in support of it and activist actors and actresses with autistic children continue to believe that immunizations cause autism despite overwhelming evidence against it.
But if we look down upon people who seem blind to evidence that we ourselves find compelling, imagining ourselves to be paragons of reason and immune to believing erroneous conclusions as a result of the influence of our own pre-existing beliefs, more likely than not we're only deceiving ourselves about the strength of our objectivity. "
- Alex Likerman, M.D. in Psychology TodayWhile the author points, with justice, to creationists and their disbelief in evolution, I also contend that atheism can become likewise a form of rationalized belief, subject to become def and blind to contrary arguments, not based of their merits, but simply because they go against their deeply engrained biases.
Eden