Can you explain Einstein's theory of relativity in a simple and understandable way?

Einstein's theory of relativity is a scientific concept that explains how time and space are connected. It suggests that time can be different for different observers depending on their relative motion. This theory also states that the speed of light is constant and is the same for all observers, regardless of their motion. In essence, it revolutionized our understanding of the universe by showing that time and space are not separate, but intertwined in a single fabric known as spacetime.