Some time ago, I actually considered an idea similar to this. I was wondering how "big" is the present. And in fact I arrived that if the "present" has some "thickness" change would be impossible. But interestingly, here you are giving an interesting perspective on this, i.e. that it is possible to accept both a "thick" present and change. — boundless
The idea of a two dimensional present is becoming more common amongst speculative physicists. I think it provides a basis for explaining our experience of activity occurring at the present, and it might also help to create a bridge between relativity theory, and our intuitions, that the present is a substantial aspect of reality.
Have you ever wondered how we observe motion visually? If one's viewpoint is the dimensionless point of the present, then we can only notice static states at this non-temporal point. We'd have to infer motion by stringing together still frame states. What we see as activity would have to be a creation of the memory. It may be that this is actually how we observe motion, but the problems are numerous. If we observe static states at the moment of the present, then we have a big logical hole, between the static points, which needs to be filled. The actual passing of time would have to occur between the points, when we couldn't see it, and therefore actual change would have to also be occurring between the points of observation. So we'd be seeing a serious of still-frames, but the entire activity of change, whereby one still-frame is replaced with the next, would be completely invisible to us.
If this were the case, then the actual change that occurs behind the scene, which we cannot see, must occur extremely fast because it wouldn't be as if the object moves from point A to point B, while we're not seeing it, the object would have to be reconstituted at each point where we see it in a still frame. We cannot assume that the object "moves" from point A to B or else we'd have to allow that it could be at intermediate points. The behind the scenes activity would have to consist of a re-creation of each object at each moment of time, as time passes. So even this way of looking at motion requires a second dimension of time. There is the time that we know, which consists of the series of still frames, but there is a second time which we could call "real time", which is the time passing in between the still frames. I called it real time, because it is when the real activity is going on, which is the preparation of the next still frame. But all this activity is not evident to our eyes.
Now consider how we observe motion with other senses. Let's take the tactile senses, touch, taste, and smell. Heat will burn, and that's a sensation of molecules moving fast, causing damage. The olfaction senses are themselves extremely active, with nerves and other activities, and they sense molecules which are less active (unless they are overly active causing burns). In these senses we have activities of the nerves, which are sensing states of the object. And this is what seeing does as well, it is activities within, which are sensing unchanging things (objects). The conscious mind, sees movement within sight, and in understanding the movement of these large objects, it turns back toward the movement of tiny objects, which the unconscious already uses to sense states of existence.
So we must account for this difference in "direction" when we try to understand motion. The conscious mind produces a concept of motion from large objects moving, and looks back toward the tiny, from this artificial perspective. But the living being already has a natural perspective, which is the reverse of this, it is already utilizing these tiny fast motions to rule over the more static, temporally extended states. The natural "rule" of the living being therefore may be derived from the "real time", the activity between the static states, and the static states may be completely artificial.
The reasoning is in fact, sound. The possibility of being more "presents" as the "scale" of observation varies is something that I have never encountered in physics (and in philosophy for that matter). But again, nothing tells us that there is only a "present". In fact, the tendency to hyper-semplify sometimes had its side-effects: for example the Newtonian "absolute" space is certainly simpler than SR, but it is not really effective. — boundless
Consider the possibility that the static states of the still frame representation are artificial, created at the conscious level. The states correspond to objects. The objects we see are masses of molecules in different shapes. We create a present, a timeline by giving these shapes temporal extension, inertia. But if we look at individual molecules, as shapes, then we have created a different set of static frames with a different, but supposedly parallel timeline. If we go to atoms, we have a different set of frames, and a different parallel timeline.
This model of reality is of course very complex and the natural inclination is to reject its complications as unnecessary. But the key to believing it, or accepting it, is to recognize the logical necessity of concluding that physical objects are necessarily re-created at each moment of passing time. There are different approaches to this conclusion, mostly presented by different religions. But the best, I believe, is the direct approach from personal experience. Consider the difference between what has been in the past, and what may be, in the future. All of physical existence is in the past, and it has been sensed by us. Now turn your attention to the future. I see an abrupt wall, where my senses cannot go. There is nothing here to sense, no physical existence. I sit here without moving, and I realize that I can move my arm whenever I want. So it's impossible that where my arm will be in the next second is already existing, because only I can make that designation, now, and I can do it whenever I want. If there is no definite place where my arm will be in ten seconds from now, then it is impossible that it has physical existence at that future time. So I must conclude that it comes into existence at the present moment, at each moment as time passes. Now I can look around the physical world at all the things which human beings have the power of changing, and I can extrapolate to conclude that all physical existence must come into being at each moment as time passes.
This produces all sorts of problems and complexities with the nature of spatial extension. Let's assume that all physical objects, static states with temporal extension and inertia, are artificial, created by the conscious mind, as described above. This means that "space", which is our conception produced to allow for the real existence of objects, is created according to our observations of these objects as well. So if we go to a parallel time line, as described above, we need a different conception of space at this timeline. And each timeline requires a different conception of space, to allow for the necessity that spatial existence, and therefore space itself, comes into existence at each moment of passing time.
Here I see two possibilities, BTW:
1) We at best can have a "partial knowledge" of the tint. In this case our "trial and error" procedure allows us to know partially the "tint" by the "inside", so to speak. We can think that the "tint" actually has two "parts". One part is changeable by us: we can in fact use whatever concept we like and "test" it. However a part of the tint is completely "hidden", it is "a priori" in all our observations. We cannot "remove" it, so to speak. In this case we can never have the possibility to "see things as they are", but we can have a "partial knowledge". This IMO is quite a rational perspective.
2) On the other hand we can accept that we can "trascend", so to speak, all tinting. In this case the "tint" can be modified by our trials until we arrive to a "perfect" untinted perspective. Note that this is possible only if no "part" of the tint is "a priori", since in that case we could not even imagine "reality as it is". If there is no "a priori" part of the tint, then in fact we can infer how the untinted perspective is by studying the "behavior" of the results of our trials and errors. — boundless
So I think that the issue with the tint is to figure out the exact nature of the tint. I believe it is as you say "a priori" within all our observations, but that does not mean that it must remain hidden to us. The reason, is that we have different senses, so the tint will appear differently to the different senses. And this is how we will determine the nature of the tint. Notice, that in my discussion of the different senses above, I did not even approach the relationship between seeing and hearing, of which the Fourier transform and the frequency/time uncertainty are derivative. The uncertainty, being a product of the tint, ought to have a different measure in sight than it has in sound, and that would help to expose the nature of the tint.
Let's assume for the sake of argument, that the tint is in how we draw our timeline. If for example, we create a timeline by using relatively large bodies like the earth and sun, and stay true to that timeline, we will produce accurate knowledge of things within this spatial realm of "objects", objects this size. But this knowledge would not be very reliable in relation to larger objects like galaxies which exist on a different timeline, because we would be making a diagonal across from one timeline to another, without knowing this. The desire would be for an orthogonal relation between timelines, but how would we know what's orthogonal? Likewise, if we study tiny subatomic particles, an atomic clock would give us a good timeline, but to relate this timeline to the one of the earth and sun would be problematic because we would know the orthogonal relation. To determine the orthogonal relation would require figuring out how spatial existence comes into being at each moment. Anytime one timeline is related to another, without determining the true tint, it would cause a problem.
What exactly is matter? Ultimately it is just quantum stuff of some sort. Matter feels solid. Matter is perceived of as solid. But we know it is empty. It is something we call energy. It is energy tightened into a ball as one might imagine vapor tightening into a snowball. — Rich
Why would you assume that matter is "quantum stuff"? Why wouldn't matter be better represented as a continuous field, or wave function. Matter is how we understand continuous existence, not how we understand particular changing forms.