I think transubstantiation is a little more complex than to say it literally becomes, since it's talking about the substance and not the accident. But that little trivium of Aristotle is only superficially interesting in modern physics and cognitive perception.
It always amazes me how these people can appear every generation and no one remembers the frauds exposed from the last generation. I wonder if there is a school of cold reading they go to and then have a coming out where they all of a sudden have these powers. There out to be a law.