[AntonioLao]

Why Newton’s 3rd law fails inside a black-hole? To answer it is to clarify the 3rd law. As stated: for every action there is an equal and opposite reaction. This statement seems to imply that for a universe filled with singular quantized inactive matter, the second force, the reaction, does not exist until the first force, the action exists. The question is what is the cause of this first action? In term of matter forces such as gravity and inertial force, one suggestion is that matter can create its own force. Therefore the 3rd law is really a law about secondary forces. But it appears that only primary forces can exist inside black-holes. Furthermore only one primary force can be found within a black-hole. The question is then how do two black-holes interact? Since no black-hole can be found within another black-hole it means that primary forces are repulsive. And they can be repulsive if and only if they are equal in magnitude. If one primary force is weaker than its neighboring primary force then the weaker force transforms into a secondary force and becomes attracted toward the stronger primary force.