Observer

In special relativity there is no traveling observer. They is only stationary observer. Traveling observer leads to twin paradox. Special relativity treats the twin paradox trivially. This is a mistake. Because of this mistake, all sorts of mythology has crept into science, or rather physics. It's like alchemy to chemistry. Time travel, many worlds theory etc. These leads to lot of contradictions. It may be good for fiction but not for science. What we need are good solid answers, these concepts are really flimsy. They are not practical no experiential proof is available.

Special Relativity treats both stationary observer and traveling observer as same. That they have same qualities, this is done without any proof. For instance first proof of special relativity mu-meson falling from the sky, it trys to treat that their is an observer in mu-meson, as well as the stationary observer sitting on earth. This is not practical, there is no clock that falls with mu-meson.

Special relativity treats as there are clocks everywhere, each point do space have a different clock and worse than that these clocks are all synchronised. Then the traveling observer also have a different set of clocks that travels with him, and each point in space has a different clock and they are all synchronised with the traveling observer. These assumptions are not practical, and don't have experimental proof, which results in twin paradox.

According to quantum theory when an observer is present things behave very differently. Photons when we observe behave like particles, when not behaves like waves. Special relativity is based on velocity of light, so, the same theory should be applied. Moving observer with a light clock, observing the stationary observer, will not see the same as the, stationary observer. One observer sees waves - with special relativity, other observer sees particles - without relativity. Therefore traveling clock will run slower to a stationary observer. But when the traveling clock also have an observer, either light behaves completely like a particle and light will not have constant velocity to both observers or to one of the observer (more study necessary to find out the circumstances) it behaves like a wave and particle to the other observer. Another important factor is it is known that doplar effect is seen in living light sources. This also should be taken into account.

This explanation can explain twin paradox.