According to our current understanding of physics based on Einstein's theory of relativity, it is not possible for an object with mass, such as a human or any physical object, to travel at or exceed the speed of light in a vacuum.
As an object with mass accelerates towards the speed of light, its energy requirements increase dramatically. The closer the object gets to the speed of light, the more energy it would need to continue accelerating. As it approaches the speed of light, the energy required would become infinite. This phenomenon is known as the relativistic mass increase.
Additionally, as an object accelerates towards the speed of light, its relativistic mass would increase, and its length in the direction of motion would contract. Time would also appear to slow down for the moving object relative to a stationary observer. These effects, known as time dilation and length contraction, are consequences of the theory of relativity.
Therefore, if it were somehow possible for an object with mass to travel at the speed of light, it would require infinite energy, and time would essentially stop for that object.
It's important to note that particles without mass, such as photons, can travel at the speed of light in a vacuum. However, they have no rest mass and are inherently massless particles.
In summary, based on our current understanding of physics, it is not possible for an object with mass to catch up with or exceed the speed of light. The laws of relativity place fundamental limitations on the speed at which objects can travel.