[quote=@whizzball1] Here we go. Now we're getting somewhere. Colour is fine. Now, let's try describing what he does to manipulate speed. Speed is determined by how much kinetic energy an object has. What does he do to manipulate that energy? If you don't have an explanation, I have an idea. You can say that, but so did I, way back when (even before MR). So this apprehension is from experience. [/quote] I'll have an appropriate answer for you momentarily.