Maybe. But from reading this last page I'd say he has an issue understanding time. Let's see how we get on with his questions:
I am not saying that they have got something wrong, because a clock is really ticking either slower or faster in different space-time, but I question whether we have understood that realties collides witch each other
Imagine the international space station (ISS) was orbiting the Sun (not the Earth) in the exact same orbit as the Earth does.
No problem.
One complete orbit around the Sun (for the Earth and ISS) would not take the same amount of time, (since gravity is different at the ISS compared to Earth).
It would actually. The Earth and the ISS start off from point x in the orbit at the same time, and arrive back there at the same time. The ISS doesn't get there half an hour before the Earth, or vice versa. To appreciate this, just imagine yourself to be an observer watching all this from a point out in space 100 million miles from the Sun. OK, the clock difference measured by the observer on earth and the observer on the ISS is real enough, but what clocks actually "clock up" is local motion. All clocks count up some regular cyclic motion and display a cumulative count as "the time". Local motion at the surface of the earth is occuring at a slightly slower rate than on the ISS, that's all.
Here comes the question, that everyone that really has understood relativity easy should be able to answer.
What more as time consumption would change/be different?
Would 2 travelers (one at ISS and one at the Earth) agree that the circumstance of the exact same orbit is the excact the same for both observers?
No. They would however agree that the observer on the ISS is a little "speeded up" as compared to the observer on Earth.
Would both agree the orbit speed is the same for both observers?
Yes. They can see that the speed is the same. The ISS doesn't pull ahead of the Earth or vice versa. They might disagree about the measured value of this speed in metres per second, but they're both smart enough to understand that this measured difference is the result of their different gravitational potentials.
Would laws of nature (gravity) be the same?
Yes, the "laws of nature" would be the same. There's scope for some measurable differences in say the fine-structure constant, but only in extreme situations. Apart from the obvious differences caused by the lack of Earth gravity, experiments on the ISS will give essentially the same results as those performed on Earth.
How it possible that 2 observes experiences the exactly same event, - and let us say both is moving with the exact same exact speed, and traveling the exact same orbit circumstance, - how is this possible when time consumption is different.
Because time isn't being "consumed". Time is just the thing people say that clocks measure, when what they really measure and "clock up", is regular cyclic motion that is local to the clock.
I mean every cow know that time multiplied with speed = distances.
Sure. And every cow knows that when my second is different to yours, my 10 m/s isn't the same as yours. But if we're running a 100m race, and if it's a dead heat, then whatever our respective clocks say, we were running at the same speed.
Now take this to this a bit more extreme, (so that not only cows understand the point) - let us make the time difference more extreme, let say Earth – ISS >> 1:2. Do you believe the ISS only would complete only one orbits when the Earth would complete ½ orbit?
No.
Or WHAT. Do you really understand relativity?
Yes.
