Thread: Time Machine?

Ive got some kinda theory that we can predict whether the time machine will be invented or not.
Firstly, there is the eventuality that the earth will end someday when sun depletes its hydrogen stock, or due to global warming, whichever comes first.
When such a time comes, well, if the time machine has already been invented, many people will travel back in time to develop their means of escape from disaster. This will cause a steep increase in the population very suddenly.
So, the point is, if whenever we experience a steep pop rise, we can be sure that t-m has been invented, if pop doesnt rise, then either panic that we're all gonna die or we will surely escape !

Hey, i know this is kinda naive, so, give me ur feedback

If time travel will be invented, we should already have seen time travelers, unless our time and all previous eras are/were just not popular destinations.

If time traveling were possible, then the future would have already been (since you can travel to the future); thus, the persons would have panicked from the beginning of time, and that population rise would have come a long time ago.
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That being said, time travel is impossible. If we were to time travel, it would first of all be impossible to travel to the future, unless we're traveling back to the future. Secondly, we would have to re-arrange every particle in the Universe so as to make everything as it was in the past; even then, we wouldn't be certain whether things would progress the way they previously progressed. The reason we would have to take this route is that time is nothing more than a measure of progression. If things do not progress, then there is not time (in other words, if everything lost its kinetic energy and the universe just froze--no motion whatsoever--there would be no time). Thus, to reverse time, we'd have to reverse progression, and in doing so re-arrange every atom in the universe.

Originally Posted by Harold14370

If time travel will be invented, we should already have seen time travelers, unless our time and all previous eras are/were just not popular destinations.

Maybe we have. Maybe flying saucers aren't aliens.


If time travel ever can exist, it would be limited. It would have to leave the laws of causality intact.

You couldn't hear the beatles' music, hate it, and decide to go back in time and assassinate them before they could start their music career, because the fact you want to kill them is the causal result of the fact they made music.

But the question is: Does time travel always have to violate the laws of causality?

An interesting scenario: you go back in time and kill yourself. What then? How long does it take before the 'you' who traveled back in time becomes non-existent? Does it take the difference in the number of years between the existent you and the dead you, or does it happen instantly?

Originally Posted by Pritish Kamat

if the time machine has already been invented, many people will travel back in time to develop their means of escape from disaster.

You have to stop watching those old Star Trek reruns. Roddenberry beat you to it or you thought you could sneak one by the Zinman. Either way it was an excellent plot. Why would all the survivors want to go back to the same time instead of dispersing thru history.

See my new thread in this section.

An interesting scenario: you go back in time and kill yourself. What then? How long does it take before the 'you' who traveled back in time becomes non-existent? Does it take the difference in the number of years between the existent you and the dead you, or does it happen instantly?

I suspect that, if time travel is possible, it involves altering the way some basic rules of causality work around the object that does the traveling.

It wouldn't be possible, under the new rules, to do this. You'd simply be unable to kill people you are causally resulting from. (including your former self, grandfather, etc)

Time travel, if it exists/can exist, is much more complicated than most works of fiction make it.

Yeah, ur right about people dispersing thru history, but what ive put forth is ONE way of knowing bout the invention beforehand.

And, by the way, it has nothing to do with coming back from the future and killing urself, although I would like to know bout it!

[quote="Pritish Kamat"]Yeah, ur right about people dispersing thru history, but what ive put forth is ONE way of knowing bout the invention beforehand.

And, by the way, it has nothing to do with coming back from the future and killing urself, although I would like to know bout it!Why are you starting entirely new threads with "reply to" (whoever)? Simply reply IN that thread !!!

Many worlds theory of the universe. It suggest that there are many world lines branching out instead of just one singular world line.

Look up "John Titor" if you want some entertainment on the subject.

We basically know that time is subjective with our current understanding. Before this, it was absolute. Maybe in the next paradigm, it is trancendable.

I like to think that UFO's are time traveling tours from the future. For a few extra bucks (or whatever they use) you can kill a cow, or abduct someone and scare the shite out of them. LOL

We don't know anything. Face it.

Originally Posted by Harold14370

If time travel will be invented, we should already have seen time travelers, unless our time and all previous eras are/were just not popular destinations.

time travel can only happen in one direction and that is forwards. It is possible to theoretically warm space to create a link to the future, simulations have been run suggesting this can be done by a series of lasers

Originally Posted by Harold14370

If time travel will be invented, we should already have seen time travelers, unless our time and all previous eras are/were just not popular destinations.

If time travel WAS invented in the PAST (on earth or anywhere else), then we may someday see time travelers.

When does something happen?

Suppose a time traveler goes back 200,000 years and buries a 100 dollar bill in Antarctica.

In one sense, it happened 200,000 years ago, but in another sense it hasn't happened yet. It hasn't happened to us yet. Nothing about that guy burying a 100 dollar bill in Antarctica 200,000 would affect anything between then and now........ unless we're talking about some really crazy kind of "butterfly effect" scenario.

My point is that there are many ways to look at the sequence a series of events flows from. Time isn't the only way to order events.