What is topological distortion?

I understand the view confusion and struggling to understand topological distortion. I read from this website that the points of the plane that is parallel to the view plane and also passes through the COP are projected to infinity by perspective projection.

When we join the point which is back of the viewer to the point which is front of the viewer then the line will projected as a broken line of infinite extent.

My question how the point which is back of the viewer projected to infinite extent by perspective projection? What's the intuition of topological distortion?

I want to understand what does the meaning of this sentence "When we join the point which is back of the viewer to the point which is front of the viewer then the line will projected as a broken line of infinite extent."?

And what does the meaning of broken line of infinite extent?