And what is it? It is the dimension in which the present takes on cargo and weight. While it is true that the past is instantly devoured by the present, it is also true that the past pervades the present – while being devoured by it. Of course when I switch on the light Edison switches it for me. And it is not just TE. It is industry, commerce, and the electrician around the corner. I can do nothing effectual without the past, but the past has no meaning except through me. Historia rings many changes on this obvious, but endlessly instructive, idea.