[image]Consider the proposed scenario in the attached image.

Assume that portals can have both velocity and acceleration without breaking (whatever physics of portals that might imply).

The top surface (with orange portal attached) moves towards the cube with non-zero velocity v.

The portal is not large enough to engulf the platform on which the cube is sitting, so when the two surfaces meet, the cube will pass through the portal but the platform will not, causing the upper surface to instantly decelerate to 0 (unless your answer requires realistic rates of acceleration, in which case elaborate in your answer).

For simplicity, assume that the environment is 0 gravity and a vacuum.

Will the cube be launched (i.e. move away from the blue portal at velocity v)?

Will resolve to the answer of a poll to be linked after the market close time. If there are arguments for a more appropriate resolution criterion, feel free to propose them in the comments and I will consider them.

I reserve the right to bet in the market (for as long as the resolution does not depend on my subjective judgment; if this changes, I will disinvest).

Update 2025-02-11 (PST) (AI summary of creator comment): Portal Relationship

The orange portal and blue portal are fixed relative to each other and remain directly adjacent.

As a result, if the cube moves away from one, it must simultaneously be moving away from the other.