"as we move, viewed objects cast changing shapes on our retinas, although we do not perceive the objects as changing. this is part of the phenomenon of"

This is part of the phenomenon of "Perceptual constancy".

Perceptual constancy, likewise called Object Constancy, or Constancy Phenomenon, the inclination of creatures and people to see recognizable questions as having standard shape, size, shading, or area paying little heed to changes in the point of viewpoint, separation, or lighting.

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.

Yes, they are always very triggered