In the Dragon Ball series, Goku is often depicted as an incredibly fast and powerful character. While Goku has achieved impressive speeds and displayed abilities that can be perceived as surpassing light, it's important to note that these depictions are fictional and should not be taken as scientific fact.
In various battles and instances, Goku has shown incredible speed and the ability to move faster than the human eye can perceive. He has been portrayed as capable of teleportation using techniques like Instant Transmission, which allows him to seemingly disappear and reappear at will. Additionally, Goku has achieved various transformation forms, such as Super Saiyan and Ultra Instinct, which enhance his speed, reflexes, and overall combat capabilities.
However, it is crucial to understand that the speed of light, which is approximately 299,792 kilometers per second (or about 186,282 miles per second) in a vacuum, is an extremely high benchmark. As of our current scientific understanding, nothing with mass can attain or exceed the speed of light in a vacuum, as it would violate the principles of special relativity.
While Goku's feats in the Dragon Ball series may depict him moving faster than light, it is important to remember that these depictions are part of a fictional universe and are not consistent with our current understanding of physics. The Dragon Ball series primarily focuses on action, adventure, and entertainment rather than adhering to scientific principles.