CERTAINTY – SCIENCE – PART II (CONTINUED)

Last time I noted there are ten fundamental assumptions underlying the seemingly ironclad truth of science, and I discussed the first five: empiricism, material monism, mathematics, the uniformity of nature, and causality.  The sixth is universal applicability, meaning science as a method is assumed to apply to all of nature and even to the human realm. Therefore science is considered the best means not only to study the earlier history of the universe but also the very existence of it. Likewise not only can human behavior be categorized scientifically, but subjective reasoning and consciousness also can (or will) be explained, even predicted. Some scientists argue that humans lack free will and that all human action in theory can be explained through material causation. Others contend that ethics, happiness, and human meaning can be elucidated using scientific techniques.

Next is the axiom that human reasoning in general and the experimental method specifically are valid in the interpretation of data and informing reality. Demonstration of the reliability of human reasoning is necessarily circular as it must be used to justify itself. The scientific method – hypothesis, experiment, measurement, confirmation – seems rational, but is itself confirmed only by repetition of the method since further demonstration is indirect, for example by validity of prediction or application. Thus for example, paleontology relies on theories such as carbon dating or the increasing age of deeper sedimentary layers which in turn depend on the indefeasibility of the logic behind these methods. Alternatively, science insists on the corollary that no text or teaching is inviolate; all must stand up to ongoing scrutiny.

The eighth assumption is that each field of science interconnects with the others. For instance, the quarks of the physicist become the elements and molecules of the chemist which in turn make up the organic matter of living things. The implication is that instinct, love, and human creativity, for example, can be explained by chemical structure and reactions alone.

The ninth assumption is that most physical processes can be distilled down to a limited number of scientific laws. Laws of mechanics, wave and field theory, relativity, and string theory are the progressively inscrutable explanations for common experience like the growth of an oak from an acorn or human romanticism around the full moon. Science embraces Occam’s razor, the theory that the least complex explanation is most likely. As a result, additional inferences are made such as the prediction of a ‘theory of everything’ and the seemingly irrational theory that everything material ultimately came from nothing.

Last is utterly critical – the denial of the supernatural. If any events in the universe occur outside of natural law, then all natural laws become suspect as either wrong, unprovable, or local. In science, the explanation of any event must not require something outside of the sensible universe. Thus ESP, ghosts, souls, miracles, and God cannot be implicated or acknowledged as they cause the scientific matrix to unravel.

Of course there is significant overlap among these ten fundamental assumptions that underpin science. But it seems science has developed not as coherent truth, but as a modern form of foundationalism. We will return to this in the synopsis of science as certainty, but first we need to explore falsification and verification challenges to scientific certitude.

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CERTAINTY – SCIENCE – PART II

“What science and the quest for knowledge are after is irrefutable truth; that is, propositions that human beings are not free to reject – that are compelling. They are of two kinds, as we have known since Leibniz: truths of reasoning and truths of fact.” – Hannah Arendt.

Science, I observed last time, is the paradigm of a system of coherence, but also fits as well as any other system the two other concepts of truth – correspondence (to reality) and pragmatic (instrumentality). Today we delve further into the question of whether science can claim certainty by investigating its ten foundational principles:

1.   Empiricism

2.   Material monism.

3.   Mathematics/statistics

4.   The uniformity of nature/induction

5.   Causality

6.   Universal applicability

7.   Validity of human reasoning/scientific method

8.   Interoperability/transferability between fields

9.   Refinement into a limited (or singular) underlying laws.

10. The non-existence of the supernatural.

Again I would like critique these individually, starting with empiricism. While all of these basic assumptions are necessary for its coherence, science requires one to accept that the human experience of nature and of natural and experimental events is the only legitimate basis for evaluating reality. This is the sine qua non of all science and the greatest lesson of Galileo. If it turns out our senses in fact fail to examine the physical world, then science is at worst simple conjecture and at best only an explanation of human phenomenologic experience, but by no means correspondence with reality.

The second axiom of science is material monism, the belief that there is no separate nonmaterial existence. For instance consciousness is only a manifestation of organic brain activity. The great metaphysical question of the existence of the human soul is dispensed with by simple denial. Some scientists may be dualists, but even they tend to accept science alone describes physical reality.

Third is the validity of mathematics especially in its application to systematic observations yielding for example, Newton’s “force equals mass x acceleration” or Einstein’s “e=mc2.” The axiomatic truth of mathematics applies to all measurements in scientific research and underpins the statistics essential to most scientific conclusions.

Fourth is the presumption of a uniformity in nature. By this the scientist asserts that what applied in the past will apply in the future and what is true in one place is true everywhere else under the same conditions. Thus the boiling temperature of water is the same today as it was one thousand years ago and as it will be in one thousand years and stars in other galaxies act in the same way as stars in our galaxy. From this uniformity, a limited number of measurements can be projected on to nature itself, allowing the induction of scientific laws.

Fifth is causality – the belief that preceding events cause later events and no event is uncaused. If sequential measurements show the earth’s average temperature is rising, there must be a reason; we cannot say this rise is instantiated in the universe itself. While apparently self-evident, Hume argued this belief may be merely a trick of the human mind and that causality cannot be demonstrated beyond question.

(continued next post)

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Having trouble leaving a question or comment?  E-mail me at gregoryciliberti@gmail.com