Traveling faster than the speed of sound results in not hearing sounds from behind, but inside a plane, sound travels normally due to the air moving with the plane. In contrast, if one could hypothetically exceed the speed of light, they would not see anything ahead, as light from those objects would not reach them. However, it is currently impossible to travel faster than light, making such scenarios purely theoretical. Approaching the speed of light leads to interesting effects, such as changes in the spectrum of visible light. Overall, discussions on exceeding light speed remain speculative and lack practical implications.