What happens when an immovable object meets and unstoppable force?
I will attempt to answer this question my way.
This question is first of all assuming that both an unstoppable force and an immovable object exists as ideas outside the physical realm.
By using the analogy of a solid wall as well as Newton's law of motions: "Every action as an opposite and equal reaction", "A force will either be still or continuous until another force acts upon it", I will attempt to address the dilemma.
A wall. When you push against it, you are applying a force against the wall, and the wall does not budge. In that case, there should be an opposite force acting against your force. However, once you let go, the wall does not push back, resulting in neutral force. So this in turn suggests that there is no opposite force acting against your force when you push against the wall, or if there is, what is it?
This would suggest that not every action has an opposite and equal reaction, simply the action or force is not great enough to break the solid compounds of the object.
In this case, when the unstoppable force hits the immovable object, the force will be stopped, resulting in a great explosion. A force can only be stopped if another force acts upon it and in this case, there is no opposing force acting against the unstoppable force, only the object which halters the force so in this case, since there is no force acting against it from the object, it must be stronger than the force acting on it. So the object will remain intact while the force will be ceased.