Well, if you take a really strong laser pointer and point it at the moon, than a flick of the wrist can make that point race faster along the moon's surface than the speed of light.
If I installed a really bright light source on two opposite ends of the observable universe and timed everything correctly, I could make it seems like the point traveled across the universe in a fraction of a second. Same idea, same flawed logic. Nothing actually moved.
But its not really a point thats traveling faster than speed of light.
The individual photons that makes the point travel always at the speed of light from your laser pointer to the moon. Its not point on the moon thats traveling, the travel is just ilusion because it looks like the point that was there a split second ago.
I am not sure how to define the point, but my way of thinking is that its not the same point. The point never moves, instead it continuously vanishes and a new point is being continuously made next to it.
That way, there really isnt a point that is traveling or moving, its just our perception mistaking it for a point because it looks and move like one.
The thing is that lots of our 'concrete' real world objects have more in common with the later pointer point than with physical reality. Concreteness is a bit of an illusion, it's all wave functions at the bottom.
(Of course, real world objects still can't go faster than light.)
Yeah, exactly this. If you think of it like waving a garden hose back and forth it's very clear why this is flawed logic. Also because of quantization the further away you put the target surface, to try to raise the "speed" of the not actually existing point, the more discontinuous it becomes.
