[chaganated]

This Eco fellow is a little sloppy. The same underlying phenomenon often looks very different from perspective to perspective. The history of science has born this out repeatedly. The works of Newton being a superb counterexample to:

"whenever they seem to say different or incompatible things it is only because all are alluding, allegorically, to the same primeval truth. As a consequence, there can be no advancement of learning"

[Udik]

He is indeed. Every time I read something by Eco I'm both surprised by how pleasant he is as a writer, and by how handwavy and poorly supported are his arguments and conclusions.