Certainly! The easiest explanation for why we can't travel faster than the speed of light is based on Albert Einstein's theory of relativity. According to this theory, the speed of light in a vacuum, denoted by 'c', is the fastest speed at which any information or object can travel through space.
The reason for this limitation lies in the fundamental nature of space and time. Space and time are interconnected, forming what is called the fabric of spacetime. When an object with mass accelerates, it requires more and more energy to continue accelerating. As the object approaches the speed of light, its mass appears to increase, and the energy required to accelerate it further becomes infinite.
This means that to surpass the speed of light, an object with mass would need an infinite amount of energy, which is impossible to achieve. Additionally, as an object accelerates closer to the speed of light, time dilation occurs. Time slows down for the moving object relative to a stationary observer. At the speed of light, time would theoretically stop.
So, in simple terms, we can't travel faster than the speed of light because the energy required to do so becomes infinite, and time itself becomes distorted. The speed of light acts as a cosmic speed limit, beyond which the laws of physics, as we currently understand them, would break down.