3
Personal Knowledge
3.1 Preface
Polanyi starts his train of thought in Personal Knowledge with a request to the reader: set aside all your beliefs and prior notions, no matter how natural they may seem to you, and imagine contrasting objectivity to subjectivity with perfect consistency. What is the meaning of this pure objective knowledge? How does the universe and human beings look from this pure objective point of view?
His answer is this: since pure objectivity cannot be biased at all, it cannot take into consideration any subjective viewpoints of human beings; therefore, from a consistent, objective point of view, every small, material part of the whole universe should be examined in absolutely equal manner. In this case, human beings would not get any time for scientific inquiry because the Solar System and the Earth are only tiny parts of the Milky Way among billions of other stars and planets. Of course, the Milky Way is also just one galaxy among billions of others.
It does not matter how much scientists talk about the need for consistent objectivity, it is clear that there is no such scientist in the world who could and would want to contemplate the universe in this manner. In that case, neither the Earth nor another person could appear in scientific knowledge as a particular, exciting thing or being. We pay attention to specific things and creatures only because of our so-called subjective, anthropocentric point of view. Therefore, the pursuit of pure objectivity in science is unfounded because it ignores the real workings of human knowing, which is rooted in our natural, evolutionary interest toward the particular things and beings of our own environment.
Polanyi, of course, speaks about the viewpoint of Laplaceâs demon and its absurd nature (2.3). But if the Laplacian ideal of objective knowledge is false, then the question inevitably will arise: what is the real nature of scientific knowledge? And what is the real meaning when scientists talk about objectivityâwhat they are hiding?
3.2 The Tacit Roots of Scientific Discovery
Polanyi shows the real meaning of objectivity with the example of the Copernican revolution. According to the modern understanding of science, the previous medieval, Aristotelian/Ptolemaic, and Earth-centric worldviewâwhich was a religious, superstitious, and anthropocentric subjectivismâwas superseded by the Sun-centric worldview of modern, objective science. Thus, science transcended the narrow point of view of man and his subjective, illusory impression that the Earth is standing still under his feet. By pure scientific rationality, it was revealed that the Earth revolves around the Sun (with huge velocity) and not vice versa. Man lost his place at the center of the universe and became one of the many incidental existents at the edge of the world.
The Copernican view of the universe, however, is just as far away from a pure, consistent objectivist viewpoint as the Aristotelian/Ptolemaic one. As much as the Earth is not the center of the universe, neither is the Sunâboth of them are insignificant specks of dust in the vast universe. The great, scientific step of Copernicus does not go toward this direction but rather toward a more abstract personal knowledge.
Copernicus chose the new Sun-centric view not because he wanted to occupy a more pure, consistent, and objective stance, but rather because he preferred the theoretic Sun-perspective over our natural experience that the Earth steadily and immovably stands under our feet. Copernicus had no empirical evidence at all on the side of his theoryâas a matter of fact, the apparent empirical evidence supported the old, Aristotelian viewâbut he still committed himself to the Sun-centric view because it provided him deeper intellectual enjoyment than the old, earthbound one. Nonetheless, in a sense, it can be stated that the Copernican view is more objective than the previous Aristotelian one; not on the basis of pure objectivism but rather because it was a step toward a âmore ambitious anthropocentrism.â
It is important to note that the basis of this new, Polanyian sense of objectivity is such personal aspirationâan intellectual enjoyment or passion based on the scientistâs intellectual skills (3.3)âwhich, according to modern understandings of science, is subjective and thus has to be rejected. For Polanyi, however, these intellectual passions and skills cannot be subjective; otherwise, they would not be able to lead to more objective scientific theoriesânot even in a weaker sense. At this point, however, Polanyiâs goal is only to establish that although there is no ideal knowledge (in the sense of pure, consistent objectivity), the selection of the Copernican theory did not happen randomly or solely by subjective factors:
According to Polanyiâs example, if we abandon our commitment that the Earth is at the center of the universeâwhich is based on our natural experience of the Earth, standing still underneath our feetâthen we can get a Copernican theory that is not only satisfactory for us but also for every other possible intellectual beings in the Solar system (that is, of course, if they also abandon their previous commitments, based on their natural experiences, that Venus, Mars, etc., is standing still underneath their feet): âSince [Copernicusâs] picture of the solar system disregards our terrestrial location, it equally commends itself to the inhabitants of Earth, Mars, Venus, or Neptune, provided they share our intellectual values.â
We can acknowledge that the Copernican theory is better, more rational, and more objective ...