Vidav wrote:JoltinJoe wrote:
No, but I'm get tired of all the whiz kids here who cite "Occam's Razor" without any real understanding of it, or who William of Ockham was. On these boards, "Occam's Razor" has become a tool of the lazy to dismiss other people's ideas and to dumb down every discussion.
Search "Occam" on this board and show me evidence that I am wrong.
What about the other writings and philosphers that used the same idea before Mr. of Ockham was around? The common usage of it now is named after him but the idea predates him. So his personal beliefs shouldn't really play into it.
There were perhaps expressions that were comparable prior to William of Ockham; whether these expressions were comparable in application is debateable. For example. Ptolemy is said to have observed that the simplest explanation was usually the correct explanation, and this often cited as a statement of Occam's Razor prior to Ockham. However, Ockham actually rejected Ptomely's observation as not necessarily correct.
I was hoping to make my point quickly by reference to wikipedia, but what I discovered is that wikipedia only reinforces the common problem with the way Ockham applied his "razor."
Wiki says in its first sentence that Occam's Razor "is a principle urging one to select among competing hypotheses that which makes the fewest assumptions and thereby offers the simplest explanation of the effect." In fact, Ockham would take exception to the statement that the hypothesis which makes the "fewest assumptions" is by definition the one that offers the "simplest explanation." Likewise, he would reject that the "simplest explanation" is the one, by definition, which makes the "fewest assumptions." (Although in any given case, this may be true) (I should note too that the article later states, correctly, that the "simplest available theory need not be the most accurate.")
Ockham held that, when faced with two hypotheses of equal merit to explain an observation, the one which makes the fewest assumptions is preferred. In so observing, Ockham stressed that one should avoid making unnecessary assumptions in explaining phenomena because the idea involving fewer assumptions can be more easily tested. In framing the inquiry as such, Ockham was not advocating (as usually attributed to him) that the idea with fewer assumptions was usually correct, but that it was simply more capable of being tested and eventually deduced to be right or wrong. Accordingly, correctly understood, Occam's Razor is more a tool of ascertaining how to ascertain which, among competing hypotheses, is true, rather than a tool for specifying which one is correct.