Hi.. I was reading about the special theory of relativity, and was thinking about interactions and speed of source retained by the body getting ejected from the body. As per the classical idea, imagine an airplane dropping something on the ground, then the dropped object acquires the speed of the airplane, that is due to the interaction between the object and the plane. Now consider if the object starts moving inside the plane with respect to the airplane, then gets ejected we say it has acquired a velocity of itself and also due to the source(depending upon the direction of motion). But as per special relativity there is a bit change in the formula if the speed is comparable to that of light. This suggests that the interaction gets affected by the speed of the body,i.e. reduces with increase in speed; and when the speed approaches c it tends to zero. Well, this can truly explain why light is same speed from every frame because it doesn't acquire the velocity of the source. Further suggesting that the maximum speed with which interactions occur. I was trying to convince myself if this is how the idea of interaction speed limit =c be explained. Please tell me if this is so or not. thanks in advance..