“GP-B will measure two parts of Einstein’s general theory of relativity by assessing how the presence of Earth warps space and time, and how Earth’s rotation drags space and time.”
“The center of the gyroscope is a jewel-like sphere of fused quartz. These spheres, the size of Ping-Pong balls, are the roundest objects ever made by man. The tiny spheres are enclosed inside a housing chamber to prevent disruption from sound waves, and chilled to almost absolute zero to prevent their molecular structure from creating a disturbance. The accuracy of these gyroscopes is 30 million times greater than any gyroscope ever built.”
I’d like to think the MWI has an explanation for this paradox: that in killing one’s grandfather, he simply jumps to a different world-line, where perhaps his parent was conceived before the killing, or he had a different grandfather.
I just don’t believe that one could possibly negate their own existence, through any amount of time travel.
Come to think of it, I’d say time travellers must jump to different world-lines in their travel. Imagine the tangled web of cause and effect that would end up if everyone were to remain in the same world-line?
The paradox that remains for me seems even more difficult to resolve. If one went into the past and met their past self, does that require the past self to travel in time at some point in their future? Is free will still existent in a world that allows time travel?
in essence, a type of time travel is possible. either being near a huge gravitational field or traveling very fast can slow time and make you age slower. so in a way, that is a type of time travel.
I’m starting to get the impression that you’re scared by people who think freely.
Nobody needs to tell me this because I don’t care, whether or not it’s a complete fabrication.
Billy, you should know LSD is a very sensitive compound. If smoked, the molecule would surely be broken into inactive compounds before it had a chance to be absorbed by the body. That’s why no one smokes LSD. Not even someone as “crazy” as myself.
So you’re equating my creative thinking with craziness? Are you saying all artists, including unicyclists, need to be locked away in an asylum?
Billy, your words verge on the border of terrorism. I suggest you hold your tongue lest you get a visit from the Department of Homeland Security.
I blame Einstein. Come up with a theory about moving clocks running slow, add a couple of twins to the mix, and all of a sudden you have a paradox. Fine. But expose this to the man in the street and suddenly it expands into time travel, and nipping back to watch your own conception.
The problem is that to do so would imply that time can be reversed. As far as I know, all demonstrations and theories to date merely say that ageing of a moving object is slowed. I have seen no theories, and certainly no proof of time going backwards.
Even to travel at the speed of light merely stops, but does not reverse, ageing. (as measured by the other twin I believe). No matter what your twin does, he can only get younger than you, not younger than he was when he first stepped into the spaceship. When you next meet it is in both of your futures. Both of you are older.
So you need a step into pure fantasyland to generate any of these paradoxes involving father/son/grandfather and time travel. You would have to allow time to be reversed (and selectively at that, for just part of this world!) in order to go back and meet someone in the past. As this seems …er…unlikely, to talk about such paradoxes in any supposedly factual way, and whether time travel would involve the cessation of free will etc etc seems rather farcical.
The best you can do is to precede all this tosh with a “what if”…
All you need to experience “time travel”, is a telescope. As an example, if we look at a distant galaxy, nebula, etc, that is 1 million light years away, we are seeing not what it looks like now, but rather the way it appeared 1 million years ago. (It has taken light, traveling at 186,000 MPS, 1 million years to get here.) And for objects much closer, like our sun, light takes a mere 8 minutes to travel 93,000,000 miles!
Maybe you are experiencing “time travel” taht way.
But does it allow you to go back in time and kill your parents before you were born, and nevertheless be born from another line? That’s what Maestro is talkin’.
Because science has proved that time slows down as an object approaches light speed (relative to an arbitrary “standard” observer) , Hollywood did something super cool. I totally love it.
Watch “Journeyman” the tv series. Excellent. Don’t miss the 3 “butterfly effect” movies. An incredible plot device and just great movies.
Sorry, off the subject, what did Hollywood do ? They made up a fact. It is a fact that if you go faster than light you go back in time. Most people IMHO believe this Hollywood fact is true because they have seen the movies and followed the plot. With their own eyes !
In truth, the pillar of relativity and time was based on the acceptance that no one can observe anything happening faster than light. Einstein would be forced to the bong to try to grasp any logic in how his fundamental assumption (nothing is as fast as light) has been twisted into “just go faster than light and you go back in time”. That is just pure Hollywood, a complete acceptance by movie watchers in order to follow the plot of these great movies.
Time does not exist. It is simply the comparison of one motion to a “standard”, that we just made up. We were all once 3 foot tall. Do you have a fantasy that you can climb into a yard stick and be 3 foot again ? Why not ? Because that is a lame plot for a movie.
It is far more plausible to walk into a magic yard stick and become 3’ tall again than it is to travel back in time to a place that exists only in the human memory.
Because time doesn’t exist as a place. It is a human construct to compare the changes we see. A necessary tool, like math. The past is just memories. Time was made up by humans, and other animals, as a tool of mind. It is a system to compare a trusted “standard” of cyclical motion, to other motions we wish to “time”. Nothing wrong with that. Every dog wants to know when it’s time to eat. Because if you miss a meal, there is no going back.
There was a time where speaking of man’s capability to fly was considered fantasy. But that didn’t stop man’s dream of flying.
It’s much easier to say “it’s all tosh” than to actually think through the consequences… but you aren’t going to get anywhere that way.
Great suggestion, Terry! Perhaps we should buy some telescopes for the cynics…
Really? Why, then, does entropy suggest time has a direction? And why does quantum mechanics suggest that there are discrete states in which particles can exist? Why don’t you put those two ideas together and tell me what else prevents everything from happening all at once? 'Cause that’s not what’s happening right now…
If I go back in time and kill my parents, do I die there or fade away like in a tv show? Or does nothing happening to me, because Im already alive, go back and stop me from being born in their time, which doesnt affect that I was already born once in my time leaving me to still exist in any time I travel back to.
Though its weird to think how their life would live out compared to my present live.
In their life, they would be dead (lol) and the world would go without me. But when im back in my present, im back in the life where I have always exsisted.
Or would I try to go back to my present and not be allowed to? Access denied. Ctrl - Alt - Delete!
This is the crux of the paradox. When you say “my present”, which “you” are you talking about? Consider the fact that there are an infinite number of “yous” in the MWI…
