Alexandros Syrakos

Among the mysterious and wondrous characteristics of minds, the deepest and most mysterious one, yet also the most overlooked, is their particularity. It is a special and most fundamental kind of particularity: each of us experiences life through their own, private, unique, and non-duplicable perspective, which is what fundamentally differentiates him/her from the rest of the universe and gives him/her their unique identity. There is an infinity of possible first-person perspectives, and each mind has a unique one. The particular perspective of each mind is accessible only from within that mind itself while from the outside it is indistinguishable from the infinity of other existing or possible perspectives. For the rest of the universe, what is particular about a certain mind is completely hidden. The paper begins with a consideration of the "pairing problem", i.e. of how minds are paired to bodies, which serves to elucidate this concept of particularity of minds. If the mind is reducible to fundamental phenomena associated with a body’s physics or material constitution, then the pairing rule should be traceable there. Which particular mind will emerge from a particular body (i.e. whether it will be me, you, or someone else) should depend/supervene on either the particular structure of that body, or on the particular matter that constitutes it. But it can depend/supervene on neither: on one hand, bodily structure is duplicable but particular minds are not (if exact copies of my body were made, I would not also be paired to those other bodies; other persons would be. All those bodies would be structurally identical, so the structure of the body cannot determine the particularity of the person paired to it), and on the other hand the particular matter that constitutes our bodies changes every day but we remain the same persons. The paper then proceeds to deeper arguments: The uniqueness of a mind's particularity, its complete hiddenness from the rest of the universe, and its complete external similarity with the particularities of all other minds makes it impossible that it is dependent on anything external to it, making the mind an independent substance.

The mind is our most intimate and familiar element of reality, yet also the most mysterious. Various schools of thought propose interpretations of the mind that are consistent with their worldview, all of which face some problems. Some of these problems can be characterised as ``hard'', not in the sense of being difficult to solve (most problems concerning the mind are difficult), but in the sense of being most likely insurmountable: they bring to the surface logical inconsistencies between the reality of the mind as we perceive it and the fundamental metaphysical tenets of that particular worldview, thus putting the latter in danger of being disproven. This essay focuses mainly on the hard problems that the author considers to be of greatest importance for physicalism, the currently prevalent worldview. Nevertheless, some of these hard problems pertain also to otherviews such as panpsychism. In the author's opinion, the hardest and most profound of these, pertaining equally to physicalism and to panpsychism, is the one discussed in Section 4: the particular subjective first-person viewpoint that defines a particular person can be found nowhere in the universe except in that person itself; all outside entities (physical or mental) are equally neutral towards the ``particularity'' of that person, which therefore cannot be explained as arising from any combination of such outside elements. Therefore, a person is a simple substance. Other hard problems discussed concern the physical explanation of conscious experiences and the physical explanation of meaning, while their repercussions with respect to free will and ethics are also examined. Although these latter hard problems have already been discussed elsewhere, a somewhat fresh perspective is given here by someone who is not a professional philosopher but a physical scientist.