>>13423822With projections right? That's really clever.
Still though, dark is different than shadow. A shadow in your example is also a conceptual thing and not an actual object and while I can imagine dark being an object, a shadow cannot. But still a good one.
>>13422416Since I have time I will explain the other anon, I'm a mathfag and a bit autistic so sorry for the overcomplication but I have to be rigorous:
Imagine a 3-space where we have placed a light source in the origin and imagine we have an object in and we move it in . Let be a plane defined by two points . The points are basically the points where the shadow of the object is going to end up.
If you start at the moment then it will take an additional seconds (where , the distance from to , it also happens to be the distance of to , and 'speed' of light) for the "dark" to reach .
We start moving the objects right from the start to . If the object gets in at then it will take an additional seconds.
The "shadow" will be in point at the moment and in at the moment to reach .
We see that the shadow took seconds to travel from to . That's a speed of . Let and then boom, the shadow of the object has traveled at the speed of . Pretty cool.
