Some time ago, I was discussing the qualitative-quantitative divide with a friend, a medical doctor, who happens to be very interested in the philosophy of science. The discussion became a debate, where we trying to get to the bottom of whether it was as I said, that the world is a qualitative entity, wherein the mind supplies quantity; or as he said, that the world has a mathematical ontology, something like the worldview championed by Meillassoux or Galileo. To be clear, I was just arguing that it could be either way, with some slightly greater likelihood that the world may not have quantity in it, apart from that supplied by the mind. By contrast, my colleague, the M.D., did not understand how it could be that there is no such thing as quantity in the world, in the sense that he could not envisage as scenario in which number does not inhere in the world. Between us was the barrier of language and experience, which was constituted in the difference between education of a physicist —though I did do a pre-med track and have interests in the philosophy of medicine— and that of a physician. We ended up settling on an example that is grounded in physiology. I will set up the groundwork for the discussion, then, give the example, and, finally, provide the resolution that has come to me only recently.