UPDATE 2 - TIME: CAUSE AND EFFECT
Just as there's no point in space more special than any other (Copernicus), no point in time is more unique than any other: that would only be so if there'd be time outside the universe, a watch on the wrist of some outside Authority who sees the universe evolve as a whole, who sees generations come and go and who's right now looking at us. However, how can we rhyme the apparently causal sequence of events with the idea that every observer is at the center of his universe in space as well as in time: what can it possibly mean to be at the center of time?
If the universe contains all time within, and a space distance is a time distance, clocks must show an earlier time as they are more distant, and, to be able to run behind the clock of the observer, run slower. The question whether we see these clocks as they were in the past or not depends on our assumptions. If we believe in the Big Bang tale according to which all clocks were created at a single event in the past, showing the same time, then we'd infer from the time they show (their evolutionary phase) and their pace (redshift), that they must be receding faster as they are more distant, so this universe would expand.
However, if particles create themselves out of each other in an evolutionary process at different times, then we'd see a particle 'run' at a slower pace, shifted farther to red, in an earlier phase of its evolution, but not necessarily as it was in a more distant past.
If processes are observed to proceed slower as they happen farther away, then we see the galaxy shifted farther to red as it is more distant if it is at rest with respect to us, any receding (nearing) velocity increasing (decreasing) its redshift.
The redshift of galaxies then doesn't necessarily prove that the universe expands: only if it could evolve as a whole, their redshift would indicate an expansion.
Unlike the Big Bang tale which assumes all matter and energy to have been created in a flash, to forever after remain constant, a self-creating universe wouldn't know how to stop creating, so here energy and spacetime keep being created, be it that probably as much disappears from the interaction horizon of the observer as is created inside of it. So when the Big Bang hypothesis came in dire straits when, contrary to expectations, gravity proved not to slow down the expansion of the universe after all, another myth was launched, the so-called 'dark energy' to explain why distant galaxies instead of decelerating, seem to accelerate away from us.
This is not to say that we live in Hoyle's Steady State universe: like the Bang tale, it treats the universe as an object, so it likewise fails to offer any idea about the origin of all matter and energy at all, about how it might be created. (Hoyle et al. do offer an alternative explanation about the origin of the 2.78 ° K cosmic background radiation in Further astrophysical quantities expected in a quasi-steady state Universe, F. Hoyle et al., Astron. Astrophys. 289, 729-739 (1994), p 732). Whereas we might expect radio sources in a steady state universe to be distributed uniformly, this is not observed: they appear more numerous at large distances. However, if new galaxies keep being created everywhere, at all distances, but we see on average more galaxies in an earlier evolutionary phase at larger distances, and radio sources are associated with some early phase, then this might explain their distribution.
If the universe as a whole cannot follow some particular time direction, if there's no clock outside of it to determine in an absolute sense the time sequence of inside events, then the speed of light is not a velocity, but a property of spacetime. As a space distance is a time distance, we obviously measure a duration between the emission of a photon and its absorption elsewhere. However, this doesn't mean that it takes time for the photon to travel that distance: it bridges the spacetime distance between emitter and receiver in no time at all. According to the source particle, the state of the absorbing particle changes at the time it emits the photon, whereas according to the absorbing particle, the state of the emitter only changes as it absorbs the photon. Though to us the transmission seems to consist of three independent events, the emission of the photon, its voyage and its subsequent absorption, to the photon itself it is a single event: it cannot be emitted before it is absorbed elsewhere. Since the concerned particles by exchanging energy keep each other informed about each other's state, they can agree on the time of the emission and the photon frequency. Though we evidently measure a duration equal to the distance between the photon source and the receiver, that doesn't mean that the transmission isn't instantaneous.
So whereas Einstein was right in equating a space distance with a time distance, Newton was right in assuming that light is transmitted instantaneously. However, since Einstein and contemporaries came to believe that the universe must've started with a bang, they had to assume that particles only are the source of their interactions (or vice versa: because we assume this, we have to believe in a bang-kind of scenario), and hence we must see them, the galaxies they form as they were in the past, so their light must have taken a longer time to reach us as they are more distant. Unfortunately, we confuse a time distance with a duration: though we can measure a space or time distance as a duration, they are entirely different things. The confusion evidently originates in the medieval notion that there's a clock outside the universe, that the universe follows some particular time direction as a whole.
This, by the way, means that in EPR experiments where photons are entangled, having opposite spins, the observer with his detection of one photon doesn't affect the spin of the other photon (see: http://en.wikipedia.org/wiki/EPR_paradox 8-feb-2011). As the photon source continuously exchanges energy with everything in its environment it is informed about the orientation of the polarisation filter of the detector. It then produces both photons with opposite spins, the one which eventually is detected with a fitting spin, and the other photon with an opposite spin. So it isn't that a photon as it passes the filter chooses that polarization so it can pass and be detected, and at that time sends a signal to its sibling elsewhere to tell it what spin it must assume. As the source knows the orientation of the filter even before it emits the photons, it produces both photons with the appropriate polarizations. So except for the continuous, unobservable energy exchange between the source particles and those of the setup, there's no spooky action at distance, and no information is transmitted faster than light. For the same reason photons don't annihilate in the two-split interference experiment: as the source knows where they would annihilate, it doesn't even produce them: to the source the dark areas of the projection screen just don't exist in that wavelength.
Anyhow, we can only speak about the past of a galaxy if there would be a clock outside the universe, a calendar to note its evolutionary progress, if the galaxy has an autonomous existence, independent from any interaction it may be involved in. However, if particles create one another, then so do the galaxies they form, so they exist only as far as their particles exchange energy, particles which as they contract, emit the radiation that makes galaxies observable. Like the images on a TV screen disappear when we cut off the juice, particles would vanish, stop to exist if we could cut off their continuous energy exchange, an exchange which, unlike a net energy transmission, is unobservable for its obviousness since without it, nothing would exist. For particles to exist is an activity, a verb, not a noun: it would only be a passive state if they would've been created from the outside, if the universe would have a cause.
If galaxies power each other by exchanging energy, then the state a galaxy is observed in depends on its interactions with everything in its environment, including the observer and his galaxy. If in that case we, our galaxy affect the properties we observe the galaxy to have, then we cannot say that we see it as it was in the past: as a space distance is a time distance we see it as it is at present, to us. Saying that we see it as it was in the past, is like when two rockets A and B near each other with an equal velocity with respect to the stars, A says that since he sees B's clock running faster than his own clock, B must see his, A's clock run slower than his own.
The light of a light source shifts to red, to longer wavelengths as the source sits in a stronger gravitational field and the field at the observer is weaker, so since a longer wavelength is a less definite wavelength, more information seems to get lost. If the light from some distant galaxy shifts to longer wavelengths as it leaves the galaxy's field, to contract to shorter wavelengths as it enters the field of the Milky Way or Earth, then that doesn't mean that the information the light looses as it leaves the galaxy is retrieved again, that we see the galaxy as it was when its light departed -assuming for a moment that light has a velocity, which it has not. Such retrieval only would be possible (approximately) if there wouldn't be other galaxies between us and the source galaxy and the wide environment of the light's path, if, at the same distance as we see it now, the galaxy would be our nearest neighbor -though in that case the physical distance between both galaxies, their interactions would be quite different from what they are now. As the (rest) energy of a particle is the superposition of all frequencies it exchanges energy at with every other particle within its interaction horizon, two particles observe each other's energy to decrease as their distance increases: the superposition unravels. Similarly, the larger the distance a galaxy is observed from, the more the superposition of frequencies unravels, until only the longest wavelengths remain. So though the light seems to loose information as it leaves the galaxy's field, all galaxies in a large radius about the source and the Milky Way, in a large area about its path affect the information it carries, subtracting and adding information to the light. Though it seems obvious that a galaxy looks different from different directions and distances, this is why it looks, why it is different to different observers: if particles create one another, determine each other's properties and behavior, then different neighbors, a different mass distribution in different directions must make the galaxy different in different directions: there's nothing random about how it looks.
So the moral of the story is that we cannot speak about the galaxy: doing so is saying that it has properties, an existence which at least partly (half-pregnant) is independent of any interaction, that is: that it has been created by some outside intervention. If so, then we obviously also cannot speak about the past of the galaxy, so we can only understand it if we acknowledge that, like its particles, galaxies are as much the source as the product of their interactions so it has no single, absolutely objective shape. If the galaxy, like every one of its particles, exists as a superposition of exchanges, of evolutionary phases, phases which are spread not only in time, but also in space, the earliest phases observable, existing presently to observers at the largest distances, then we cannot speak about the past of a galaxy as something which has vanished from the universe -a notion which, again, implicitly refers to some outside clock. That a nearby observer sees the galaxy in its most recent state, does not mean that the accidental time he lives and looks at it is more special than any other time: this would only be the case if the universe as a whole could evolve in time.
The next question is whether this view on time rhymes with causality, or, rather, if the concept of causality is compatible with nature's logic, whether it fits the facts. If energy is a fractal quantity, if it keeps being created or keeps creating itself at every point, then so is spacetime: if every point in spacetime and in time is like a tiny spring from which wells continuous, very tiny flows of water in all directions, expanding the distance between events and places in space as well as in time, then this weakens the chain linking causes to effects. In fact, if every point of every link expands in a process which is entirely independent of whatever events the chain is supposed to connect, then the relation between these events eventually evaporates as the chain grows, expands.
So though we can distinguish causes from effects, any cause event eventually peters out, having no reality outside some borders in space and time. If a hurricane in Houston caused by a butterfly in Cancun is cancelled if someone in Acapulco sneezes at the right time, if a later event determines the effects of an earlier cause, if we cannot recognize every detail of a cause event in every detail of all of its effects, then how can we speak about the chain of cause and effect? If no point in space nor time is more unique than any other, then events at places between these cities have an autonomy which defies causes to translate compulsory into specific, preordained effects: any chain between a cause and effect event is undermined by the uncertainty principle as it allows random events to insert themselves between its links, adding and subtracting information, affecting what happens elsewhere.
If there can be no clock outside the universe so it doesn't even make sense to ask what in an absolute sense precedes what, what is cause of what, then we should stop thinking in such terms. If any photon transmission has to be approved by the receiver if it is to proceed, then this makes the receiver as much the cause of the transmission as the emitter. As by heating something we can increase the probability of a photon transmission, we certainly can cause an event, its absorption, to happen elsewhere, though it still requires the faculty and consent of another particle to absorb it. If we could put a light source inside a spherical mirror which would reflect all light of all wavelengths completely, then we wouldn't be able to ignite the light source -though if we could isolate it completely from the rest of the universe, we would've annihilated it.
If we associate a greater distance or smaller energy of a particle with an earlier phase or time, and the particle by emitting a photon reduces its energy exchange with the observer, as if it recedes, moves in a 'backwards' time direction, whereas the absorbing particle seems to near the observer, becoming more 'recent', then this might be why we see (the effects of) a photon emission in time before (the effects of) its absorption elsewhere. The direction in which the energy of objects increases corresponds to our forwards time direction: as they inevitably are coupled to processes which have the opposite effect so can be said to proceed in the opposite time direction, then in this universe time flows in both directions, even though we move in one direction. As the universe as a whole cannot move in one particular time direction and we cannot ask what in an absolute sense precedes what, then terms like past and future in nature have not the significance they have to us. If ultimately we cannot say that our universe as a whole, as seen from the inside, moves, evolves in one direction rather than the other, then instead of saying that hydrogen is built out of a proton and an electron, we can say as well that it is a decayed neutron. If particles obey the same laws of physics, always, everywhere, then these laws already predict, or contain as potencies, all possible particle properties, so as every kind of particle helps create conditions, design a spacetime they prosper in, they will, eventually be created, and so perpetuate the existence of their species, of creation itself.