>>14056715The way I see it, portals either have to behave like "stargates" or like "wormholes" and how you view them in this way determines how you think it will act.
In the prior case, there's a definable surface at which the transition occurs. There is no "within" the portal, a piece of matter is either on one side of the portal surface or the other.
In the latter case, space has been warped or folded so that blue and orange share the same space.
If you assume a portal is a stargate, then I'd assume B to be accurate - because of either/both:
1. there is no difference between a moving portal horizon passing a stationary box and a moving box entering a stationary portal horizon
2. the matter within the box will undergo a "chain fountain" effect upon exiting the blue portal - from the perspective of the blue portal, the parts of the cube that are outside of blue are moving outward, and the material of that segment of the cube will then be inertially compelled to continue moving
If you're assuming the portal is a wormhole, I have several questions about the "one-sided" nature of portals... does that mean the surfaces the portals are hosted upon are sharing the same physical space? If we ignore that, the more reasonable answer would be A, since it would be space itself moving around the cube, not the cube moving anywhere. If you consider the classic 2d wormhole analogy of two edges of a piece of paper coming together in 3d space, put a box next to an edge, then "shrink" the length of the paper "past" the box, this would be analogous to what's going on here.