Two nonvisual factors provide dissymmetry and prevent the ambigram from existing in a static equilibrium; most of the letters in an ambigram metamorphose into other letters when reversed; and each of those accompanying sentences provides a different idea of the word's meaning.

In the tondo of a cup in the Louvre we see a young slave, a pais, dip an oenochoe into a garlanded krater; he is holding a cup in the other hand and is about to serve drinks (fig. 20).” By isolating this detail, the painter implies all the aspects of a […]

Meanwhile, Macpherson stood just outside the door, holding a cold chisel which he had taken from a dungaree pocket […] and there Mr. Willison found him.

According to a study by me, this generates a multibillion facepalm for the UK economy, making everyone who considers it at least eleventy hundred pounds unhappier.