Let’s imagine a world where time machines are invented.
Hypothetically, what’s stopping anyone from travelling to the past, where the dollar is much more valuable, and buying things at a much lower price? What if you then go back to the present, sell those things at a higher price and repeat the cycle? And wtf would happen if everyone there started doing that?
Maybe not because you can’t prove a negative, but since there is no proof that it exist, there is no rational reason to believe it does.
It’s all wishful thinking and speculation for hundreds of years with nothing to show for it.
I do however have the proof of logic, because if they do exist, all sorts of logical inconsistencies arise. Which is why fantasies about it, always end out in either infinities or paradoxes.
I can’t prove an invisible pink unicorn isn’t in my room either. But I can say I can’t see hear or otherwise detect it’s presence, even after thorough investigation, and closing the room off for an extended period of time. I still can’t prove it, but the logical conclusion is the complete an utter lack and absence of an invisible pink unicorn in my room.
And yet, you’ve concocted this fantasy that you call “the present,” as if such a thing could exist in a relativistic universe…
That’s not a concoction or a fantasy, but the actual reality. Or are you trying to argue the present doesn’t exist?
Time is seemingly an emergent property of causality. But the exact nature of what time is exactly, is not well understood.
Basic principles about whether time is linear or quantized isn’t even entirely clear.
But to argue the present doesn’t exist is like arguing nothing really exists, and then I don’t really have anything to say to you, because that’s like solipsism and that’s absolute nonsense not worth debating.
https://en.wikipedia.org/wiki/Relativity_of_simultaneity
The present does not exist. From the previous link:
If two observers will disagree on which events happened in “the present,” then “the present” cannot exist as a real universal entity. “The present” only makes any physical sense in classical, pre-20th century Newtonian mechanics.
This is why the block universe or eternalism makes more sense.
That’s not the same thing. Obviously all experiences are delayed, and therefore about the past, even if it is merely picoseconds.
In that way we can only experience the past, that is obvious, and not relevant to the existence of an objective present.
Although we can only experience the present with some delay depending on circumstances, (can be billions of years astronomically) there is zero doubt that there is an objective “present” we all experience and act according to.
You’re still imagining that there is some fixed universe playing out at constant time, and that we all just experience the echoes of this present in different orders. This isn’t what relativity says. Clocks traveling near the speed of light don’t just appear to slow down, they actually slow down.
Different regions of the universe don’t even experience the same flow rate of time. Someone living on a mountaintop experiences time faster than someone at sea level. And yet you cling to this fantasy of their being some universal “present.” You cannot have a universal present in a universe composed of different flow rates of time!
Which is EXACTLY the ONLY thing I said you can actually do.
You can slow down time locally. And for a photon it’s slowed down to a standstill.
That does not contradict ANYTHING I’ve claimed.
Yes, you recognize the fact, but you haven’t internalized its implications. You can only have a universal present in a universe of shared time. Ultimately, “the present” is something applicable to and that exists within the mind of a single observer.
One of the hallmarks of science is that different people can independently measure something and confirm its existence. If no two observers can ever agree on what constitutes “the present,” then how can “the present” be said to exist at all? It’s a fundamentally unscientific concept.
No, it’s an objective thing. No observation can be exactly “at the present”, I clearly explained that earlier, there are always delays, that doesn’t change the fact that like a photo is not the past being real, so it is far all observations. That doesn’t change the fact that there is an objective “present”.
Oh boy, yes I know that argument, and it’s a flawed argument IMO. It’s about definition. If we agree to meet somewhere at the same time, then when we meet we are at the present. There is no sane argument about that IMO. We perceive each other with a slight latency, but that does not prevent us from being together in the present.
To argue the present doesn’t exist is nonsense, and no more than a philosophical curiosity. Scientists absolutely work with a present too, and obviously compensate for latency.
I could ask the same question reversed: How can scientists compensate for latency to a degree they can measure gravitational waves, without an objective time frame, that requires acknowledgement of a present?