Arvin Ash

How Faster than Light Speed Breaks CAUSALITY and creates Paradoxes (2021x20)

Udgivelsesdato: Jun 24, 2021

Signup for your FREE trial to Wondrium here: http://ow.ly/f5Jw30rNLaD - Highly recommended! Explanation of light cones: https://www.youtube.com/watch?v=ZfR1Jc6Zglo 0:00 - FTL is possible! 2:43 - Why is there a speed limit? 4:37 - Einstein's postulates 6:22 - What if speed of light was infinite? 8:29 - What if we could send instantaneous subspace signals? 13:22 - No warp drives? 14:12 - Special offer from Wondrium Further reading: Faster than light, special relativity, causality: https://t.ly/6XUe Why FTL implies time travel: https://t.ly/Yhzj How instantaneous communication violates causality: https://t.ly/sx9E How can two moving observers both experience time dilation: https://t.ly/k9T4 Summary: If you point a powerful laser at the moon, and spin it 100 times per second, the dot on the moon will move 3X the speed of light. This is ok. The maximum speed limit is not a limit with which things can move, but is a limit on the speed of causality. A cause cannot have an effect anywhere in the universe faster than the speed of light. What are the implications of having a speed limit on causality? Why is there a limit in the first place? And how would causality be broken if information could travel faster than light. Only a force can cause something. The speed of information is the speed of a force field. You can’t send information faster than the force field can change. This sets an upper limit on its speed. Light in a vacuum travels at c, the maximum speed because photons are massless. Without mass there is no restriction on its velocity. Einstein’s theory of special relativity is based on two postulates. Neither of the postulates state that FTL is impossible. Postulate 1: The laws of physics are the same in every reference frame. Postulate 2: The speed of light in a vacuum is constant, and independent of the motion of the source of that light. But what if this maximum speed was infinite, implying that the speed of light is in