The statement you mentioned, "When you exceed the speed of light, time goes backward," is not supported by current scientific understanding or the theory of relativity, as formulated by Albert Einstein. According to the theory of relativity, as an object with mass accelerates and approaches the speed of light, time dilation occurs. This means that time appears to slow down for the moving object relative to an observer at rest.
However, it is important to note that no object with mass can actually reach or exceed the speed of light in a vacuum, according to our current understanding of physics. The theory of relativity states that as an object with mass approaches the speed of light, its mass would effectively become infinite, requiring an infinite amount of energy to continue accelerating. Thus, it is not possible to exceed the speed of light.
The statement you mentioned might be a misunderstanding or a misquote. It's always important to verify information from reliable sources and consult scientific literature to accurately understand scientific concepts and theories.