hypnagogue said:
I see philosophy as a necessary complement to science if one wishes to construct a coherent worldview for oneself. I think there will always be legitimate metaphysical and epistemological questions that cannot be settled conclusively by scientific inquiry.
I couldn't agree more. Scientific activity is often divided in two parts: a technical one, and a philosophical one. During scientific education, and during "work as a scientist" the accent is overwhelmingly placed on the "technical" part (calculations, laboratory procedures, insight in a formalism, development of intuition for failure-search in lab procedures, etc...).
As long as one stays within a clearly defined paradigm, in fact, all that is "needed" of a scientist are these technical skills. It's what makes that the experiment comes out all right, that the calculations are correct, that the right intuition is used for the allowable approximations and so on, in other words, that the working scientist does a good job, writes good publications, and obtains good results.
But it is interesting to see the battles about, say, the unification of gravity and quantum theory, to see the philosophical side emerge again, because this time, there IS no paradigm in which to work technically (well, in fact, there are fake paradigms, set by the heros of the moment).
I think it is a pity that philosophy has a "bad name" amongst the physicist community in general. Feynman (otherwise a great physicist) must be partly responsible for it. That's understandable: during Feynman's days, the best way to book success was to "shut up and calculate" within a certain paradigm. Deep philosophical ponderings got you nowhere, hard labor in the lab or with pencil and paper did marvels. One after the other, successes were booked.
But since about 20 years, that machine got slowly to a grinding halt.
Not in domains like condensed matter and so on, but on the most fundamental level, not much progress has been booked. And now, one sees furious battles over *philosophical* principles at the top of fundamental physical research, like: "is the anthropic principle a valid principle or not ?" "Is it meaningful to look after a theory of everything ?" ; "what does it mean to do theoretical research on topics that will probably remain outside of the realm of experiment for ever?"