* Light doesn't have a "sound barrier": Sound is a vibration that travels through a medium (like air or water). Light, on the other hand, is a form of electromagnetic radiation that travels through the vacuum of space. There's no medium for light to vibrate in, so the concept of a "sound barrier" doesn't apply.
* Going faster than light doesn't make you travel back in time: According to Einstein's theory of special relativity, nothing can travel faster than light. As an object approaches the speed of light, its mass increases infinitely, requiring an infinite amount of energy to accelerate further. Traveling faster than light is physically impossible in our current understanding of physics.
Here's a more accurate explanation:
* The speed of light is a fundamental constant: It's the fastest speed at which information or any object with mass can travel in our universe.
* Traveling faster than light violates causality: This means that if you could travel faster than light, you could potentially arrive at a destination before you left, which would break the fundamental principle of cause and effect.
It's important to remember that the concept of time travel is still highly speculative and theoretical. There's no scientific evidence to suggest that it's possible, and many physicists believe it's impossible due to the laws of physics as we understand them.
