Light does not have a distance forfeiture limit in the sense that it can travel indefinitely through space. In a vacuum, light propagates at a constant speed of approximately 299,792,458 meters per second, which is commonly rounded to 300,000 kilometers per second.
The amplitude of light does not determine its travel distance. The amplitude refers to the maximum displacement of the electric and magnetic fields that constitute light waves. It is related to the intensity or brightness of light but not to its distance of travel. The distance light can travel is primarily determined by factors such as absorption, scattering, and the curvature of space.
However, it is important to note that as light travels over long distances, it can experience a decrease in intensity due to factors such as absorption and scattering. This decrease in intensity is typically described by the inverse square law, which states that the intensity of light decreases with the square of the distance from the source. So while light can travel vast distances, its intensity diminishes as it propagates through space.