I also make some assorted comments on the nature of the universe and time.
In order to make my point, I am afraid you have to read and at least understand these terribly difficult articles about modern physics:
In short, mainstream science tells us this:
(1) all things and events in the future and past have an existence as real as all things and events in the present. We live in a block universe in the sense that all that has happened, is happening now, and will happen in the future exists simultaneously in a huge block of 4-dimensional space-time.In theory, then, there is no reason why a thing cannot move from a state of disorder to order. That is to say, an event that might look like a reversal of time such as a broken glass reassembling itself is not impossible, just mindbogglingly, highly improbable. It would require some way for energy to be imparted to the broken glass shards and move them in the right directions to converge, and then chemical bonds between atoms and molecules to be reassembled. An event like this would give the illusion of being a miracle, but it would not be: it would have some material, scientific explanation with matter and energy, but involve a set of events that is incredibly, extremely improbable.
(2) We have an illusion of a moving “present”: a forward, irreversible direction of time. Why we experience this is unclear. It seems to be an unresolved question in science, perhaps one of the most important, profound problems! As Andrew Thomas (author of the articles above) says:“The reason why we don’t see causality happening in the backward direction is purely because of a bias in our psychological systems: something about the complexity of our psychological system (our brains!) causes our thought processes to work only in the forward direction of time.”It seems to have something to do with human consciousness.
If, for example, the future already exists and your own future in all states already exists, then why can’t you remember events from the future in the same way that you remember events from the past? I have never seen an adequate explanation of this, and it must be regarded as an unsolved problem, if the block universe view of mainstream science is correct.
(3) as the author of the articles above says, what is extremely interesting is that the arrow of time is “something of a mystery to physicists because, at the microscopic level, all fundamental physical processes appear to be time-reversible.”
What seems to explain the forward flow of time is entropy (or disorder). Entropy can be seen as an emergent property of relations and interactions between a group of particles, molecules, or aggregates of atoms or molecules. The big bang created the universe with a very low entropy state. The initial conditions of our universe are crucial for understanding its current state (from our perspective). The low entropy state at the big bang meant that disorder has increased since that time.
Any closed system moving forward in time and subject to randomness will see its state become more disordered over time. This is the second law of thermodynamics.
However, the process is to be understood from a probabilistic perspective: in any set of possible states a system could have, the number of possible disordered states is vastly greater than the possible ordered states. Our belief that the state of affairs we see in the universe is necessarily caused by the universal second law of thermodynamics is somewhat misleading:“the second ‘law’ of thermodynamics is not really a ‘law’ at all, certainly not an unbreakable law on the same basis as other physical laws - it is a statistical principle. In fact, it might be possible for a room full of randomly-distributed particles to re-order itself quite by chance so that all the particles end up in one corner of the room - it would just be incredibly unlikely!”
With this in mind, it is not impossible for a human being who has been (correctly) pronounced clinically dead to come back to life. A sufficiently advanced human technology could do it, if you could repair all the damage to cells, molecules, and the brain, and restart all the chemical and other physical properties of a living organism. If you had a good record of the brain state of the person before he or she died, you could even restore memories and the mind, even if there was bad damage to the brain.
But I would contend that it is also not absolutely impossible that a dead man might come back to life by some some sheer accidental natural processes, just mindbogglingly, highly improbable. Of course, it is almost certainly true that such a thing has never happened, and never will, but the issue is simply that it is not absolutely impossible in theory.
How does this relate to miracles? I think it is obvious: think of the claims made by Christians about Jesus’s resurrection.
Of course, I do not for a second think that any of the evidence for Jesus’s bodily resurrection is remotely convincing, for reasons described here.
For one thing, the earliest conception of Jesus’s resurrection in 1 Corinthians 15.35–53 written by St Paul seems to show that Paul and the early Christians did not think of a bodily resurrection (of flesh and blood) for Jesus at all: they thought of Jesus being resurrected as a new spiritual being with a pneumatic body (soma pneumatikos in Koine Greek) without flesh or blood. This body was then exalted to heaven at the moment of the resurrection, and was only seen subsequently by human beings in visions or dreams. Paul even says that “what you sow is not the body that is to be” (1 Corinthians 15.37), which suggests that what is buried (a body of flesh and blood) is completely different from the “pneumatic body.” Paul says flesh and blood will not inherit the kingdom of god (1 Corinthians 15.50) - the “pneumatic body” will not be one of flesh and blood (but of some heavenly substance, like the bodies of angels). And 1 Corinthians 15:3–6 does not in any way require an empty tomb story, which was most probably the invention of the author of the gospel of Mark some 40 years after Jesus’s death for literary and theological purposes. The bodily resurrection is an invention of still later Christian writers like the author of the gospel of Luke.
It is even possible that Paul thought that Jesus’s dead body stayed in the grave and rotted, since (in his view) Jesus was re-created as a new spiritual being with a non-material body, possibly already part of the unseen heavenly realm.
But my main point is this: even if we saw a human being who was dead somehow come back to mortal life in 2013, and this was verified by science, it would still be theoretically explicable in terms of modern science; it would still most probably have some material explanation in terms of mater and energy, even if that explanation was not entirely clear at first. Such an event would not necessarily give us any proof of the supernatural or supernatural beings like gods. It would just be a mindbogglingly, extremely improbable event.
Even if you (for the sake of argument) make massive concessions to Christians in debate and concede that there is some convincing evidence that Jesus died and came back to life (although I do not think there is any such evidence), this does not necessarily prove this event was supernatural. It does not necessarily prove the existence of god. It does not necessarily prove the truth of Christian supernatural dogmas, and it certainly does not necessarily prove that Jesus ever did other alleged miracles or was anything but a mortal man after he came back to life.
The event would in theory be explicable in terms of, and consistent with, modern science, just an extremely mindbogglingly improbable event. Perhaps it is so improbable that it might only happen once in the whole 100 trillion year history of the entire universe. Or maybe twice or half a dozen times.
But such things would not necessarily prove the supernatural at all!