Talk:Plants vs. Zombies: Dimensional Travels/@comment-5332206-20130709201618/@comment-4195334-20130713154931

About dimension implying that you can move in directions other than height, width, lenght etc, that is true. Google tesseract. About time travel not possible, that is not entirely true. On earth, you perceive time "normally". But if you would go in a rocket, go far away from earth and the sun, and then spin around at 99% of the speed of light for some time, then come back to earth, you would notice that thousands or even millions of years have passed on earth, while the rocket was spinning around for a few days or hours. That means that even with your slightest move, you travel through time. Also, in a Superman movie, superman travels faster than light and turns time backwards. That is because if an object travels at the speed of light, that object would have zero mass, and would experience NO TIME. An object like that is a photon.