not too sure about myself.
Wikipedia: A flip book or flick book is a book with a series of pictures that vary gradually from one page to the next, so that when the pages are turned rapidly, the pictures appear to animate by simulating motion or some other…
There are videos on Youtube where people put a cucumber next to an unwitting cat. When cat notices the cucumber it jumps and runs in fear. Perhaps mistaking cucumber for snake.
In one of the discussions, Prof. David Bohm compares ending of illusion to that of a magician’s conjuring trick.