/sci/ - Science & Math

>>9686484
>Therefore the speed of the cube relative to the blue portal is 0.

The top face of the cube, the first bit to erncounter the orange portal. is at the blue portal right as the orange portal gets to it. A short interval of time later, it is one cube-width away from the blue portal. From the blue frame of reference, it is moving. From the orange, of course, it is not. Hence all the retardedness that is made possible by OP's post, and why the developers made it a "rule" that portals cannot move relative to each other, except twice in Portal 2 -- once in the link posted just above, and once when one is placed on the fucking Moon.