According to the article he particularly has in mind metaphysics in analytic philosophy, much of which is, he says, "willfully cut off from any serious issues". — jamalrob
"Philosophy in some quarters has become self-indulgent, clever play in a vacuum that’s not dealing of problems of any intrinsic interest." — Dennett
Seems to me that the average person would say the same thing about philosophy in general. Who the hell cares whether or not God exist, so long as I get to go to heaven?! Who cares whether a world exists beyond our perceptions, let's go have ice cream! Who cares what the nitty-bitty details of ethics are, the important thing is to not be a dick! Who cares about the epistemology of belief, I already know what I believe!
"Who cares?!" is the response I get from most people when I tell them the specifics of my interest in philosophy. They really couldn't give less of a shit.
The point is that the average non-philosophy-inclined person, just like Dennett, has an
agenda, in which certain topics are more
important than others thanks to a prioritization due to the agenda. To the average person, perhaps instead of philosophy, it's politics, or professional sports, or manufacturing the next salvation of humanity, or droning on video games all day, or whatever happens to fill the vacuum of boredom in your life.
Personally, I don't really care whether or not we find yet
another exoplanet, or yet
another species of irrelevant fish somewhere in the depths of the oceans, or who wins the Superbowl, or whether or not Trump or Clinton gets elected, or if Costco is having a sale on their nachos.
They aren't relevant to me.
So in order for Dennett's claim, that much of philosophy is self-indulgent and irrelevant, to make sense, he needs to support the background view which prioritizes
other self-indulgent and irrelevant disciplines and pursuits, and show why they are not self-indulgent and irrelevant and why they should be taken as of practically universal importance.
I suspect Dennett thinks much of analytic metaphysics to be like his analogy to chmess - chess but with slightly different rules as to make an entirely new game and entirely different strategies. If this is the case (which I don't think it is), what still is happening is that these professional philosophers are enjoying what they are doing. And, in fact, they
are indeed discussing a portion of the world, even if this portion is not as relevant or catches the eye of Dennett.
What I think
ought to change is the longevity of these pursuits. For as smart and capable as these professional philosophers are, many of them continue to focus on issues that are, in some sense, beneath them. Let the amateurs and aspiring philosophers work on these fun (legitimate) puzzles and focus on bigger, nobler and radical theories - otherwise it's like a PhD computer scientist working on a Raspberry Pi.
These analytical metaphysical questions: persistence, identity, object-hood, property theories, etc are likely never going to be solved in the way they are currently attempted to be, which is why I think they are better off being studied by undergrads and aspiring professionals as ways of honing their skills and preparing them for the bigger problems.
I think the reason this is not happening, and why professional philosophers continue to discuss these perennial and yet more amateur questions, is that it's
easy. For as much as ontology and metaphysics in general has exploded after Quine (regardless of whether or not it is justified), current analytic metaphysics is rather sterile and shallow. There are much, much deeper questions to be tackled that don't require the abandonment of metaphysics entirely. Compare what is usually discussed in analytic metaphysics today with what was discussed in the past or is elsewhere, and you will see just how limited the scope of analytic metaphysics really is.
Additionally, in their attempt to be be independent of the natural sciences, analytic metaphysicians end up isolating themselves from any real contact with the natural sciences. In my opinion, analytic metaphysicians have done this not (just) because they believe metaphysics is indeed a separate branch of inquiry (the
a priori study of the possible,
pace E.J. Lowe), but because they are scared of what might happen if they put their theories to the test against the sophistication of those of natural science and what the public will think of their discipline. It's what Harman said - philosophy today has a severe inferiority complex. They are scared of questioning the social hegemony of science - something Meillassoux pointed out when he argued that the austere correlationist can and should inform the cosmologist and geologist that what they are studying, the ancestral,
never actually happened. (Meillassoux does not actually support this view, though, as he is a realist).
Metaphysical theories rise and fall with the evidence just as natural scientific theories do, and I do believe that many of these analytic metaphysical theories can withstand the so-called threat of scientism and the hegemony of modern physics (but many will not and are only kept alive by this isolation) - however, this will require a bootstrapping relationship between the two, and more importantly will require metaphysicians to step up their game and tackle the bigger questions, the questions that contemporary philosophers of science are trying to do right now and could be helped by those with more sophisticated metaphysical background. Specifically, they should focus more on issues of grounding, perception, mathematical (anti-)realism, speculative cosmology and especially causality and the nature of Being itself (i.e. what does "physical" actually mean?) - many of these pop-scientists could learn a thing or two from what these metaphysicians have to say. Additionally, the divide between analytic and continental philosophy, although claimed to have been dissolved, continues to exist and you get a severe lack of communication between the two when much could be gained if there was.
Instead of removing/rejecting metaphysics, metaphysics needs to be improved and established as an important and relevant discipline to anyone who has an interest in understanding how the world works.