Bah. Don’t get hung up on Cartesian skepticism like that. (Besides which, if you’re using phenomena to investigate this “matter” you’re still running into the problem.) If you want skepticism, tackle Hume. As a personal matter, I feel Hume presented the logical end of empirical investigation, crushing the existence of Self, the idea of infinity, and so much more. And that’s just in the first part of his Treatise. Anyone keen on examining reality from the perspective of empirical investigations should pay strict attention to his arguments. I don’t like Kant for reasons which aren’t worth mentioning, but it takes a pretty different mindset to address Hume. Popper went with his critique of induction and turned verificationism of the positivists into falsification that we all know and love. But Popper was so focused on the methodological investigations and classifications of science as such that he missed the bigger picture, IMO. What I mean is, it is hard to take Hume piecemeal, in my estimation, he was very thorough and if you agree with his basic assumptions then it is pretty much guaranteed you’ll be forced to accept his conclusions. Now, I’m not saying this is necessarily so, certainly people interested in philosophy do nothing if not disagree, but I remember being pretty much swept away by his presentation. He singlehandedly destroyed the metaphysical positions I held prior to reading him. While I no longer feel he is “right”, I do credit him with breaking down my preconceived notions and leaving me empty. It took Wittgenstein and Husserl to build me back up, even though Wittgenstein would take no position on realism/idealism, and Husserl presented a transcendental phenomenology. I simply go one step further and adopt the metaphysical perspective that phenomena is all that is necessary for explanation, and phenomena are mind-correlative “events”, so I consider “idealism” to be the best description of my perspective.
Strange to suggest there is no knowledge in a discussion about how things are and what good epistemological methods are.
Man, it is like you are right there with me. And then I lose you…
Allow me to first explain my use of the word “physical”. It is a categorical word that describes a transcendental object’s role in language and in the broader Wittgensteinian sense of language games (which includes non-verbal yet meaningful behavior). It is not a categorical word that distinguishes an ontological mode. Like Hume, I suggest that maybe there is a mind-independent reality; I do not deny its possibility or existence. Its existence is unknowable and hence philosophically uninteresting. It is certainly not necessary to account for empirical investigations IMO, so it is superfluous and adds nothing to the discussion. (Again: MHO.)
I would suggest a resounding “no”. The reality we interact with is one of transcendental objects which are understood by a transcendental consciousness. What, exactly, is being transcended? The level of bare phenomena, i.e. pure sense input. From this manifold of sensation our consciousness, which transcends the manifold itself, grasps transcendental objects. Husserl considers such things with the phrase ‘intentional objects’, which is roughly “those things that I’m directed towards.” This is not a solipsistic direction; he is not suggesting some kind of internalism where we are only directed “inwards”, as it were. I am focused on an object that is not me, and this is still true even when I am remembering an object. (He distinguishes modes of satisfying intentions in such a case.) Husserl was big into objective reality. Some consider that all he ever accomplished was the ontology of subjectivity. I don’t know about that, he was a philosopher who constantly reworked and revised his opinions over time and made great effort to operate within an intersubjective reality. (These opinions of mine are formed by reading his works directly as well as others’ accounts of him.) We might distinguish three perspectives; one is the objective perspective, which is what we investigate, i.e. “underlying” reality, but which we can only investigate in a phenomenal sense through intersubjective behavior and justification. (Actually, having already accepted a level of objectivity, there was an objectively best way to pursue knowledge and there was objective knowledge and a wider range of a priori knowledge than mathematics and etc; I don’t go that far, but I won’t argue against it, either.) Finally there would be a subjective perspective, but my own readings of Wittgenstein have led me to discount subjectivity as such for not being meaningful. (I must stess “my readings” there, though I have not read any account of W that strictly disagreed with me.)
As you can see, the mind is the point from which we begin. It cannot be discounted without discounting everything we’ve investigated.
I don’t know if that clears anything up, but it might let you have a better idea of what questions to ask to clear things up.
Lib
This is precisely where I stand, which is a very wishy-washy uncommitted position, I know, but I’ve seen no way out of it. I have, however, chosen a side from which to phrase my terms which is, in my estimation, most parsimonous and that is to go on as if no mind-independent reality existed. I do not, however, wish to assert that it does not; I simply do not feel the answer one way or another impacts “what we can know and how we know it.” Much like the Michaelson Morley experiment didn’t disprove the existence of aether, it only showed that light is not a vibration of it: aether did not account for light’s behavior, so we stopped considering it. We adopted a position that aether is a mistake, but truly we haven’t ruled it out completely, we just no longer feel it has an explanatory role.
I go back and forth on the essence/existence question because I (already) only consider transcendental objects as “existing”, and they have no essence which is not simply an intersubjective construct (i.e. essence and existence are the same thing; describing one entails the other). However, in the past few months I have been considering a kind of platonic “realism” wherein the platonic “realm” is simply the realm of possibility, in which case essence (which is in this case possibility) does indeed precede existence (except that this is still a mind-correlative realm which is why I put realism in quotes). Like I said, it is something I’m thinking through now and have been for a while, but I am finding a great deal of comfort in using “pure” possibility as the foundation for actuality and investigation (e.g. when we investigate and find we were wrong yet fail to find out what is right, what were we “really” investigating?). One problem I have with it is based on Hume’s presentation of “ideas”. If you know what I’m referring to here then you could see instantly why I might have problems with essence preceding existence. But in any discussion of epistemology, I stick to explanatory angles rather than ontological commitments, so perhaps it is a sidetrack.