In the present state of our knowledge, it would be useless to attempt to speculate on the remote cause of the electrical energy... its relation to chemical affinity is, however, sufficiently evident. May it not be identical with it, and an essential property of matter?
But it's much more exciting to make Die Hard. One of the reasons that I think that movie is so successful is it deals with those very important blue-collar relationship themes. But it's more visually beautiful to show things blowing up. It just gives you more on the screen.