Maybe going as far as paraphysical here. This is not theory, not even hypothesis. It’s just speculation. I know diddly squat about astrophysics, so don’t bamboozle me with your high-faluting equations and stuff like that. Keep it to street level if you want to explain why this is nonsense.
We’ll start with the caveat that it probably is nonsense.
It all began with a (public) Twitter exchange about time.
Okay. Let’s start from the premise that the universe appeared in the big bang, We can argue about who lit the fuse another time, And yes, the big bang is theory, but that word has a different meaning in science. It means it is not proved but there is evidence to suggest it might be true. I accept that we could be the product of random cosmic forces, I also accept we could be but a spark from one of God’s fireworks. It’s all open to debate. That’s how science works.
This is not about religion vs. science. This is about the nature of time.
Incidentally, if I recall correctly, the Chinese ‘see’ time as coming out of the ground and going up, whereas we in the West ‘see’ it as going forward.
But then time isn’t moving. We are. We move through time so, as I said in that short discussion, what if time is what holds the universe together? What if that is the foundation stone?
Whether Creation or Big Bang, either way, time did not exist before the start because time is an integral part of the universe. We see three dimensions of space and we ‘see’ (rather, we experience) one of time. There could well be more dimensions, hiding all that ‘dark matter’ we know is out there.
If any God exists then he/she/it (obviously not human) must exist in more than our three physical dimensions. That would allow God to be everywhere, or at least see everything, at once. A four dimensional being would look at our three dimensional world in the same way we look at a two dimensional drawing. Five dimensions and our universe is a dot. A microfiche.
I believe science currently allows eleven physical dimensions. We barely exist at all at the top of that scenario. ‘Made from dust’ could well be a literal interpretation in that case.
But I digress. As usual.
If the universe uses time as its foundation then time travel is impossible. The universe is on the skin of a balloon expanding from its point of origin. There’s nothing outside and nothing left behind. It’s easier to picture if you think in four dimensions – we’re on the three dimensional skin of a four dimensional balloon. We don’t see inside or outside the balloon, we only see along the skin. Light seems to go in a straight line in our world but look at it in four dimensions and it’s zooming around through the skin of the balloon.
A balloon inflated by time.
Time is the dimension we cannot see. We can move in the three dimensions we are confined to but we cannot move in time, we are carried along by it. We experience it but cannot see it and cannot change direction.
There is no ‘past’ because the skin of the balloon has left that behind as it inflates. There is no fixed future because the skin of the balloon has not reached that point yet. Time recognises only ‘now’. Every point in time exists only now.
Sure, you can find relics of the past embedded in, and carried along with, the passage of time through space but you can’t go back there. It’s not there any more. Similarly, you cannot visit the future because it hasn’t happened yet.
You can still make a time machine of sorts. It can put you in stasis so you wake up in the future but going back to change the past? Forget it. The past is the void inside the balloon. If you go into the future and don’t like it, tough. There’s no way back.
I mean come on. If you had the chance, wouldn’t you want to go back and kill Hitler when he was still just a crappy painter? Or wipe out the Marquis de Sade or Torquemada or Stalin or Pol Pot any other mass murdering bastards of history? It’s never happened has it? They are all still there in history. Nothing gets fixed because nothing can be fixed. Once you’ve done it, it’s done.
As for the future, my own experience suggests that some people make accurate predictions but never very far ahead (one human lifetime is not even a tick of the clock at this scale of things) but that suggests no more than a tiny bit of variation in the process of time. Barely, probably not even, detectable on a cosmic scale. A minimal hysteresis in the mechanism that any engineer would be delighted to achieve.
Nostradamus? I read his ‘predictions’ So vague they could be interpreted any old way and even he has been ignored now.
There is nothing to suggest anyone from the future has visited the past and nothing to suggest the future can be predicted more than a trivial amount ahead. Travel in time is not possible for us.
However, a creature outside the limitations of our three physical dimensions might not be so constrained.
Maybe, this Halloween, we’ll meet one.