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I think it is important to note, if we are really looking at this in 'a scientific light,' that there is a lot of consistancy in our body, despite our inability to really know truth, as we discussed with the loopy model in our first class. Everyone has some myelinated and some unmyelinated axons--its really a function of where they are in the body, what function they serve, what type of action potential and neurotransmitters are traveling through and out of them, rather than arbitrary differences person to person. Loopy science is based on summaries of observations. Scientists are only able to say what they have about meylination of axons and the difference in speed of action potential because they have seen consistent patterns of their location/function/size/etc. in many bodies and because they have specialized in looking at the exceptions that lead to inconsistency.