Read my theory:
http://www.mm-theory.comIn the introduction to our paper
Reality and Perception, we defined the terms "indepedent-" and "dependent models of reality", and those of "objectivist-" and "subjectivist theories", in such a way as to render models of reality that were singular and pluralistic respectively. We also offered, further into the aforementioned paper, the chamber metaphore according to which each subjective reality in the subjectivists scheme could be construed as though it were a chamber amongst many others, each housing a conscious subject at its center. This metaphore served not only to clarify what a subjectivist theory entails, but truly highlighted the pluralistic character of reality that dependent models must accommodate.
In this blog post, I would like to reverse this picture. I would like to propose that though there is not one subjective reality that is in every way identical to another, and though each one is nevertheless equally real as any other, there is a way to argue that what they have in common is indeed singular, and that this commonality is, among possible other things, none other than the physical universe that the bulk of objectivists believe in. In other words, though there are many subjective realities, there is only one physical universe. How is such possible given a subjectivist account like MM-Theory? The objective of this post is to answer this question.
We may begin by revisiting our account of
identity given in our paper
The Universe and 'God' - in particular, the section
Equivalence. Let's recall what we said:
There are a couple conditions under which we say that two or more things are identical. We say this when the things in question are actually one and the same thing, or when all their properties are identical in quality and proportion. In the latter case, the things in question are not one thing, but several, and it's the fact that they cannot be told apart except for where they exist in space and time that we call them identical. For example, two baseballs that are exactly the same in terms of their size, their color, their cleanliness, the quality of the stitches and other materials, and all other features can be said to be identical, but if they are indeed two, then there will always be a difference in their place in space and time. It stands to question, therefore, whether they could still be said to be two distinct objects should we somehow take away the properties of space and time that they bear. If their places in space and time are the only features distinguishing them, then to take them away would be to make them unconditionally indistinguishable, and therefore one and the same thing. Although it makes little sense to propose this for physical things like baseballs, it makes more sense for metaphysical things - things like numbers, for example. When we talk about numbers, we are not talking about tangible, physical things that exist in the outer world. There is nothing called "a 5" or "a 9" out there. Because of the metaphysical status of numbers, it makes little sense to say of them that there are two or three that are identical. Either they are different numbers, in which case they are not identical in any sense, or there is only one of them. There is no "a 5" or "a 9", there is the number 5 and the number 9. The only kind of identity that makes sense with numbers is the kind in which there is only one of the number in question. This is true of any metaphysical entity whatsoever, the reason being that metaphysical things do not take physical form, and therefore lack the properties of having a place in space and time, which in turn means they can't be distinguish on this basis.
What this says essentially is that take away the property of the spatiotemporal positioning of a plurality of identical things, and they become not only metaphysical but singular. The question I would like to pose, then, is this: should we or should we not consider the physical universe in its totality as having a spatiotemporal position? And I would like to answer: no. It is perfectly reasonable to consider the objects
in the physical universe as having spatiotemporal positions, but when it comes to the physical universe
itself, it becomes difficult, if not incoherent, to propose that it too exists at a particular position in space and time. Rather, it is space and time that are positioned in it - and not in any
particular position (as though there could be a number of them) but
constituting the groundwork of the universe itself as the basic medium in which all physicality takes place and unfolds. The physical universe is chock full of spatiotemporal positions but does not occupy one itself.
An obvious question that this highlights is this: is the physical universe, then, metaphysical? This is a puzzling question in light of the foregoing considerations, but I don't feel we should veer too far from the obvious - namely, that the physical universe is, well, physical - but we nevertheless should recognize this one peculiar feature: that is doesn't thereby occupy a position in space and time itself. I don't intend on delivering a clean and tidy answer to this question - is the physical universe thus metaphysical? - though one might consider my answer (that it is obviously physical) as
unclean and
not so tidy, but rather to follow the implications thus far derived (that it is without a position in space and time) to the logical conclusion drawn from our treatment of identity above. That conclusion is that there can only be one physical universe.
To put this in terms of the chamber metaphore, we would say that every physical universe - each one that resides in one person's chamber and every other - is separated not by space or time, but by the "transcendental landscape" as we playfully described it in the paper
Reality and Perception. The transcendental landscape, being obviously metaphysical through-and-through, thus affords no basis on which to distinguish between one physical universe and another insofar as all features the physical universes in question bear are identical. Therefore, the chamber metaphore, banking as it does on our ability to visualize it, serves us less well than we hitherto assumed (for visualization depends on the simulation of spatiotemporal forms). We are left to rely on our conceptual understanding
exclusively to thoroughly grasp these implications.
But how can these implications be reconciled with the point that any subjectivist must hold to according to which every one of us resides within our own subjective reality - unique unto itself and therefore distinct from every other? Does it not follow from this that each subjective reality constitutes its own distinct reality relative to its subject? Yes, it does, but now let's keep in mind that a subjective reality is different from a (or the) physical universe, for although the latter constitutes a large part of the former, there are many things left out, things such as beliefs, values, perspectives, tastes, attractions, repulsions, etc. that will differ from one subjective reality to another and will not easily find a place as physical entities in the physical universe. A rose, for example, might smell sweet to one person (or in one subjective reality) but putrid to (or in) another - and so we may still make use of the relativist language - but when it comes to the question of whether or not the rose itself
exists, it can be answered in the affirmative without requiring that we specify
which rose is in question - for there is only one.
Needless to say, this new perspective on the plurality or singularity of subjective realities needs much fleshing out. Let us begin by resting everything so far said, and to be said below, on the following principle: that a subjective reality be defined in terms of set theory, and its constituent experiences in terms of members of a set. What we can say to begin with, then - and this will facilitate our discussion a great deal - is that where two or more subjective realities share certain members (or experiences) in common, the sets overlap, and where they don't, they occupy different spaces ('spaces' here connoting something more abstract than physical space). Thus, a group of subjective realities that share a number of experiences in common might be drawn as follows:
Quite easily, as the diagram above evinces, we might assign the experience of the 'physical universe' - broad and whole as that - to the common area they all share. We may assign our differences - in tastes, perspectives, opinions, etc. - to those areas they don't, to the areas corresponding exclusively to that subject whose taste, perspective, or opinion it is. Thus, with the aid the theory of sets and the Ven diagrams it affords, we get a better understanding of what it means for there to be only one physical universe amongst a variety of distinct subjective realities.
But of course, our experience of the physical universe can't be torn away so easily from certain, more basic or detailed, experiences as it can from those considered above (namely tastes, perspectives, opinions, etc.). The latter experiences might be categorized and put asside as those coming
after our sensual experiences of the physical universe as an integrated whole. But should the reader be aware of the myriad details involved in
building the physical universe from the bottom up (that is, how the
mind builds it up) - that is, the experiences coming before and culminate in a wholistic image of the material world - he will know that those details can vary greatly from one individual to another despite the fact that we may end up experiencing the same physical world. One obvious example is that in order to visually apprehend a physical object - say a pizza - we need to experience it from a particular angle. Another individual will have to view it from a different angle. One individual might see it through specific lighting conditions, thereby affecting its color and brightness, while another may see it through different lighting conditions. Therefore, those experiences that make up the whole object - namely, its lines, angles, colors, brightness, position, and so on - will unavoidably differ from one individual to another. These are the properties
of the physical objects we experience, and in fact
constitute them. How are they, then, the same object - one and singular?
The answer to this comes simple once we understand what a 'physical object' is to a subjectivist. Some might be accustomed to the argument that a physical object is nothing more than the sum of its properties - its colors, texture, weight, position, etc. - but I would like to venture a different account, one that we have already put forward in
The Advanced Theory of Mind and Matter - one that doesn't so much give us the account we're looking for but serves as its background. We said in the Advanced Theory:
When I look at my coffee mug, for instance, I not only see some mysterious object composed of a set of elementary visual experiences (like lines, shapes, colors, etc.), I see my mug! What's happening here is that the essence of my mug - that is, my concept of it - is being attributed to what I see, thereby furnishing it with real existence.
With this idea in the background, we can move into the foreground with the following point: that though the details of the physical objects we experience may differ, they will usually lead us to a common
essence - that is, a common
object or
entity - one that, at least insofar as it projects from a concept, can be said to stand apart from the details (although it will often be fused
into the details). So although the particular
angle or
lighting of the pizza might differ from one individual to another, and therefore occupy different regions in a Ven diagrams, the
essence of which these details are properties belongs in the common region. And in a very down-to-earth sense, this way of understanding the places of our experiences accords well with our common parlance. We will agree, in the great majority of cases, that the angles, the colors, the positions, etc. that we attribute to objects depend on whose frame of reference we take. To one person, who has in mind one coordinate system with its own unique origin, might attribute one position or angle to a particular object, whereas another, with another unique coordinate system, might attribute a wholy different position or angle, and out of this we have learnt to be relativistic in our descriptions of the actual state of things. But no one disputes the fact that there is indeed an object there - one pizza! - and this can be taken as a clue for what we have made explicit: that the pizza
itself rises above and beyond the relativistic details - above and beyond its position, angle, exact color and lighting conditions - and is a real
thing - singular and there in the world for a variety of individuals, with their diversity of perspectives and points of view, to grasp commonly.
I believe this accounts for the question of the variety of sensual experiences competing to be the official properties of objects we perceive in common. But other questions are raised by this idea - that we, in the fray of qualitative diversity that is our subjective realities, share one physical universe - two of which can be posed thus: 1) What can be said of hallucinations - both positive and negative* - for in this case it seems that in one physical universe at least, there will exist some object, but not in another? 2) Are we not obligated to say that if the experience of the physical universe as a whole is one experience, not many, that we all have in common, then the quality of that experience must be
precisely the same across all of us? I do not have in mind here the question of the details or properties of the physical universe, for those we addressed above, but rather the question of the
essence of the physical objects (or the whole of the physical universe itself) as projected from our concepts of them. To assume these objects, by virtue of a common essence, are one and the same for each subject, we must commit ourselves to the idea that the concepts from which the essence of these objects project are experienced in precisely the same way no matter who we have in mind - that is, the quality of these experiences, the way they feel, must be the same. But a moment's consideration on the range of diversity across individuals, across our brains and the very MODs corresponding to the experience in question, should persuade us that not one of us is that much alike to any other as to experience our concepts in
precisely the same way. This latter question is challenging indeed. I will hold off on it for now, admitting up front that I have no easy answer to offer, and focus first on the former question.
In the case of hallucinations, one simple solution that comes to mind is to place the object in that region of the Ven diagram that not all individuals share. When it is no more than one individual who sees the object, this region would be shared by him and him alone. In the case of negative hallucinations (or positive ones that, by shear coincidence, more than one individual have in common), the objects that are in fact perceived would fall into a region that
is shared by more than one person. This would entail, of course, that the region in question be shared by a
majority of individuals (indeed by at least 99.99% of individuals as the case typically is), and though this may prove difficult to draw, it is well within the logical parameters of set theory. Such a matter is simple enough; a more challenging task is to address what this implies for the physical universe
as a whole - that is to say, taking into consideration two individuals - one perceiving the world normally, the other hallucinating a swarm of pink pixies sprinkling their dust on him - are we to say that they experience the same physical universe or two distinct universes that are, though 99.99% similar, not
precisely the same. After all, in order for two entities to indeed be one, they must share
all features in common.
This question can be answered in much the same way we did the question of the details and properties of objects before the mind amasses them into an integrated and whole object. The key to answering that question was to note the manner by which the projection of essences from concepts raises the object
qua object above its mere details and properties. Something similar can be said here vis-a-vis the relation between the physical objects
in the physical universe and the physical universe itself. Just as each object therein will inherent from us - that is, from the projection of our concepts - its own essence that raises it above its details and properties, the physical universe
as a whole will likewise rise above, in virtue of our bestowing it with its own essence, its constituent parts. This is not to say that, as a result, we regard the physical universe as something other than the collection of its constituent parts - rather, it is to say that it gives us the ability to regard it as a
single thing as opposed to - or rather, in
addition to - a plurality of things. Nevertheless, it also allows us to regard its constituents in much the same way as we regard the details and properties of physical objects - that is, as relative to the individual who perceives them - despite that the physical object itself may be universal across all (or most) people. Thus, although for the one individual, the physical universe consist of magical pixies showering him with their levitating dust, and for the other it doesn't, it is still the same physical universe. Whether or not it consists of these pixies can be considered, like the details and properties we experience on the most basic sensual levels, relativistically - that is to say, we can still say that relative to one individual, the universe consists of these pixies, and relative to the other, the
same universe doesn't.
Now, as I stated above, the second question is a lot more daunting. In fact, I have no solution to it as yet. The best I've entertained hitherto is as follows: Though it strikes me as unreasonable to say that we all experience the concept of a given object in
precisely the same way, it is much more reasonable to say that we experience it in
approximately the same way. Though this falls short of justifying a license to conclude that we all inhabit the same physical universe (for that demands
perfection in the similitude of all features), it does render the problem in such a form that a solution can be brought to bear on it, one we have seen in another area of MM-Theory - namely, the one we brought to the problem of quantum superposition:
Determinism and Free-Will. What we offered there was the following: quantum superposition can be accounted for by the unclarity of meaning. That is to say, it turns out to be possible, according to our interpretation of quantum superposition, that the meaning in experience vary in term of how clear it is. In other words, some experiences are extremely close to
perfectly clear - meaning that there is nearly no question as to what they project as - whereas others are vague and obscure, their meaning being inherently hard to define - there
is a question as to what they project as. If the same account can be brought over to the question at hand - how can the physical universe be one and the same if it seems unthinkable that we could all experience it in
precisely the same way? - we might solve the problem such a question hints at in a similar vein. We would say that the physical universe - in virtue of human differences - exists in a state of superposition - and
how superposed it is depends on how differently we each experience the physical world. Such an account harkens very loudly to the
Many Minds interpretation of quantum mechanics (
Quantum Mechanics) though I will not follow the call of that harkening at this point as that is a whole other can of worms unto itself (perhaps after refining my thought on the matter over the course of time, I will post another entry, but not now).
I say this solution is only the
best I can bring to the table - not that it settles the matter once and for all - for two problematic reasons: 1) it raises a question as to what would count as sufficient differences between experiences so as for those experiences to project as different entities after all. Incorporating a degree of 'fuzziness' into what things project as certainly makes for a similiar degree of arbitrariness in where the line is drawn between entities that are one and the same but 'fuzzy' and entities that are inherently distinct from each other and multiple. The arbitrary nature of where this line is drawn entails that it is up to us where to draw it, but this in turn entails that it is not inherent to the experiences themselves, nor to the things they project as, but something imposed on it by us and our 'reality designs'. As an example, consider an individual whose mental functioning is, for whatever reason (say because of some brain abnormality), sufficiently atypical of the average man that he projects his concept of objects, of 'things', in a form that can only be called 'approximate' if that term is stretched to include a wide variety of divergent forms, but not
so atypical as for everyone to unreservedly agree that it is indeed 'different' from the norm. There is, in other words, a difficult question as to whether he experiences objects or things in the same way, or close enough to the same way, as everyone else, a question that no simple answer bears on. The obstinacy of this question is precisely the first of the problems that plagues the above solution. 2) If we accepted the above solution, we would be overlooking the gross misapplication that the concept of superposition - and therefore the concept of the unclarity of experience - is being employed towards. It is a misapplication because if there is any lack of clarity in experience, that lack must be
inherent to the experience in question - at least, if it corresponds to the states of superposition featured in quantum mechanics. But in the present context, the lack of clarity isn't in any one individual's experience - we each project our concepts of objects and things to a sufficiently clear degree as to be reasonably certain about what it is we are expriencing. The lack of clarity here is in some abstract and calculated 'average' of
all our experiences. Does such an average exist? Is there any one of us who experiences it? Or is it the case that we each experience only the particular elements, or 'data points', that go into the derivation of this average? Without the unnecessary contemplation over these questions, we can verily answer that this average only exists as an abstraction, a construct invented as a consequence of our analysis on the problem at hand. It does
not exist as a fully vivacious experience in its own right. Therefore, how can we posit its
existence in its own right? What (or who) is actually experiencing it? Some may, in response to this question, answer: of course, the universal mind is. But then I must reassert the problem: if the universal mind is experiencing it at all, it can only be in the form
we experience it, for our experiences are all it has to draw from. And again, not one among us experiences it in the superposed, or unclear, manner required to resolve this problem. The universal mind would merely experience a collection of
very clear experiences, each one approximating every other, but no one being a 'meld' of the whole.
But of course, it is a human being who would insist that the world conform to its terms - those terms being precision in the states of things, leaving no room for ambiguity and unclarity. But the fact remains that we
are human, and therefore can't escape this insistance, or at least our propensity towards it. This consideration compels me to entertain the possibility that the problem at hand isn't really a problem after all - or rather, that the problem is with us and the constitution of our minds, and not with the nature of the greater reality beyond them. But if so, it is indeed a problem with our minds, and the problem can be articulated thus: we are left wanting for a proper way to conceptualize this arrangement - the arrangement of conceptualizing our experiences and the forms into which they project, their 'fuzziness', and what that says about their unity and plurality in the grand scheme of things - such that we can
offer a solution to the above problem and thereby resolve it. We can grant, in other words, that the world beyond our minds doesn't work according to our limited conceptualization of it, but such a granting amounts to nothing more than an assertion that it all works out in the end despite our inability to understand it. Though such an assertion may be true, it is bankrupt of the means by which we
can understand it.
But as I said earlier: though it may take some time and investment into thinking, I may yet come up with such an understanding, and should I succeed, I will surely submit another post. In the mean time, let's be sure to keep in mind that this problem only arises in the case of positing that the physical universe is indeed one common experience among us. Should this problem turn out insoluble, we can at least fall back on our prior understanding - namely, that we each house separate and distinct chambers, lonely as that sentiment may be.
* For those who are unacquainted with the term 'negative hallucination', it is the failure to sense some actually existing object despite that the object is impinging on the senses in such a way that, under otherwise ordinary conditions, one would perceive the object (not seeing it when it is in fact there).
Read my theory:
http://www.mm-theory.com