Name        Candidate Number        Atlantic College        May 2005

For some people science is the supreme form of all knowledge. Is this view reasonable or does it involve a misunderstanding of science or of knowledge?

I have seen numerous television advertisements in which the makers claim that their product is 'scientifically proven' to perform its function better than other leading brands. Their assumption is that the majority of people will believe their claim to be true because it is supported by scientific evidence. This raises several important questions concerning knowledge and science: do we know that science does indeed lead to knowledge that is true? Does believing the makers' claim involve a misunderstanding of the knowledge science is capable of providing? This essay will consider the Natural as opposed to Social Sciences.

Scientific knowledge is derived from the use of a specific, rigorous method that involves inductive logic. For example, if I observe that water always boils at 100"C when I am cooking, I assume that this will always be the case (induction). However, if I were to boil water in Denver, Colorado, a location 1.6 km above sea level, I would discover that the water now boils at 94°C, as the pressure on the liquid is reduced. As we can see, the inductive component of the scientific method can sometimes lead to an incorrect hypothesis. Therefore even if a scientific theory has been rigorously tested one million times there is always the possibility that an exception will be found, and hence the theory falsified. Karl Popper acknowledged this problem and suggested that a hypothetical deductive method should be used, whereby false hypotheses are discarded through trials and disproof. This means we cannot prove a theory is correct; we can only prove that a hypothesis is false. Thus we can never know that a scientific theory is 'true'.

We know that theories once believed to be correct have been proven incorrect and ergo have reason to believe that current theories may, in future, also be proven incorrect. It was once believed that the Sun orbited the Earth and that the Earth was fiat, but evidence now makes us believe differently. As Arthur Koestler aptly commented: "The progress of science is strewn, like an ancient desert trail, with the bleached skeletons of discarded theories which once seemed to possess eternal life”. Just as Albert Einstein proved with his theory of relativity that Isaac Newton's laws were incomplete, so in future Einstein's theory may also be shown to be incomplete or even incorrect.

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To say that science provides us with the supreme form of all knowledge is therefore a misunderstanding of the knowledge it provides: the nature of the scientific method prevents us from ever obtaining knowledge that we know to be absolutely true.

A further problem involved with the knowledge obtained by science concerns the scientists themselves. Theories are only added to the body of scientific knowledge when they have been independently verified, and, perhaps even more importantly, accepted by the majority of the scientific community of the time. Scientists are human: emotions, beliefs and prejudices may affect their judgement. These may ...

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