Posted on 09/05/2022 4:53:24 PM PDT by nickcarraway
Maybe they’ll go full Oprah and start giving everybody a new car?
John Titor was more believable...
I just realized that there are people who time travel every day. What about people who live on the western boundary of a time zone, and work in the next time zone? For example, I live in the Eastern time zone, and work in the Central time zone.
I travelled from yesterday into today no problem so time travel is very real.
> We are all time travelers, traveling through time our entire lives at a very specific and fixed speed. <
That was Isaac Newton’s point of view. He said that time was like a river, flowing at a fixed speed without regard to any events. That makes sense. But Newton was wrong!
Einstein said that time could be warped by relative speeds. That sounds crazy. Einstein had the math show it. But math means little without experimental evidence. Careful experiments have shown that Einstein was right, and Newton was wrong.
It’s no big deal at low speeds, less than maybe 75% the speed of light. Even NASA uses Newton’s equations. They are close enough. But when you get close to the speed of light, Newton’s equations fail miserably. Einstein’s equations are spot on. Time really does warp.
That’s not time travel, that is time dilation.
The faster the vessel you are on gets to light speed, the less time (subjective) it is for you. However, time still goes on the same in the regular universe.
For example, imagine a spaceship traveling at 95% of the speed of light to a planet 9.5 light-years away. A stationary observer on Earth would measure the journey time as distance divided by speed, or 9.5/0.95 = 10 years. The spaceship crewmembers, on the other hand, experience time dilation and thus perceive the trip as taking only 3.12 years. (The math here is a little more complicated, but we’ll get to it later.) In other words, between leaving Earth and reaching their destination, the crewmembers age a little over three years, while 10 years have passed for people back on Earth.
Nor would have allowed wilson, fdr, lbj, or bammy or China 🇨🇳 Jo.
If it’s on the net, or some video, it’s true. Haven’t we all learned that yet? The man should be ruler of the world.
> I just realized that there are people who time travel every day. <
If you move, you have time travelled into the Earth’s future! It doesn’t matter how. Walk across your kitchen, and you have time-travelled into the Earth’s future. Unfortunately, no clock yet made could pick that up.
But if you move fast enough for long enough, an atomic clock would pick it up. Weird stuff, I know.
> That’s not time travel, that is time dilation. <
Right! I call it “time travel” to keep it in layman’s terms. But as you noted, the proper scientific term is “time dilation”. It’s all about who the observer is, and how he is moving relative to the object.
If there is no acceleration, each will think the other is time-travelling!
You might want to take a look at the topic of closed time-like curves around massive cylinders; and Tipler cylinders
I think you’re referring to John Titor.
If someone traveled from 2022 into the past, no one would believe them.
Imagine you are as small as a photon. So small you can hitch a ride on it. You travel at the same rate as it.
If you traveled from one end of the universe to the other, no time would have elapsed for you. But the universe would have existed for 13.8 billion years. Is it therefore possible that light can traverse great distances in no local time? Instantaneously from our perspective? Just a question. Not an assertion. Not even a proposal.
I meant to say instantaneously from “our” perspective, meaning the light riders (our) perspective. Not the outside observer of the universe perspective. Sorry about that. Just a question.
> If you traveled from one end of the universe to the other, no time would have elapsed for you. But the universe would have existed for 13.8 billion years. <
I believe that is correct. It would have taken no time for that photon. And the distance it travelled would also have been zero, from its point of view.
But here’s the thing. Einstein said that an object gains relativistic mass as it speeds up. So an object with mass (like you) would have a huge mass as it approached the speed of light. You could never reach the speed of light (as a photon could) because there would not be enough energy in the universe to get you to that speed.
That’s the way I was taught. But then again I’ve never received a Nobel Prize in Physics. So what do I know?
Why not? Some people think Biden was elected President in 2020.
In basic training, we had a guy from India...Pvt. Pupadu
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