This is the point of the exercise, not the simplistic (clearly doesnt get it) version some people make the mistake of assuming
As an example of philosophical analysis (though somewhat simplistic) consider the problem of the tree that falls in the forest with no one (not even a bird or chipmunk) around to hear it. The question to be answered is: Does the falling tree, when it hits the ground, make any sound? You may have heard of this problem. It is sometimes used (wrongly) as an example of a philosophical question that has no answer, or (again wrongly) of the pointlessness of philosophical investigation. But the question does have a definite answer, and the example nicely illustrates (even if overly simplified) the usefulness of philosophical analysis.
On first take, some want to answer that obviously the tree will make a sound. After all,
sound is something objectively real which shouldn't need the presence of a perceiver to occur, even if it is true that we've never heard a sound that we didn't hear. Even the sound we didn't hear could be evidenced by (say) a tape recorder placed in the vicinity. So yes, it makes a sound, or so it seems. But, in contrast, it also seems that sound is a subjective phenomenon, something not unlike a sweet taste or the feeling of pain—things that seem to require a perceiver. And so one might well doubt whether the tree really makes any sound.
What should be apparent here is that "sound" has more than one meaning. That is, there is more than one concept of sound. Indeed, consider two definitions of sound, one which we might call the physics concept, and the other the psychology concept of sound.
soundphys = vibrations in a medium (such as air)
soundpsy = a sensation; an auditory experience
These are both legitimate definitions. The first (physics) reflects interest in sound as a physical phenomenon. The second (psychology) reflects interest in sound as a kind of experience. Notice that these two kinds of sound, though related, are different and
can occur independent of each other.
Normally sound as vibrations causes sound as an experience. But they can occur independently, i.e. one without the other. For example, sound as vibrations doesn't have to cause sound as an experience (perceivers might not be present or their ears/brains might be damaged). And sound as an experience could occur without being caused by vibrations in the air (the perceiver might be undergoing some internal hallucinogenic stimulus from chemicals in the brain).
Once we see the distinction between these two concepts we can see that the original question is ambiguous; it has more than one meaning. The question (Will the tree make any sound?) is really one of two questions:
(1) Will the tree make any sound phys?
(2) Will the tree make any sound psy?
The answer to the original question depends on the sort of sound the questioner is asking about. The answer to (1) is:
Yes, there will be sound in the physics sense (soundphys i.e. vibrations).
The answer to (2) is: No, there will not be sound in the psychology sense (soundpsy i.e. auditory experience). So the question, once clarified, has a definite answer.
This example (though untypically simple) illustrates not only the technique of philosophical analysis, but it also shows its importance.
Analysis reminds us that words have more than one meaning, and things called by the same name may really be different concepts. The clarification of concepts is often a prerequisite to a proper understanding of a problem which, in turn, is a prerequisite for dispelling confusion and providing a satisfactory answer to some of philosophy's ultimate questions.
What is Philosophy? | Department of History, Philosophy, and Social Studies Education - Plymouth State University