ORIGINAL: MinnFlyer
Maybe this is a better analogy:
First, this highway has many lanes, not just a few.
Second, there are red, blue, green, yellow and many other colored cars driving bumper-to-bumper in every lane at the speed of light, so they would appear to just be a blur.
But your receiver only "sees" the blue cars.
Unless your name is Neo, then you can jump off the blue car and fly around the world before you save it!!!!
Ken