Electricity is an example of a general purpose technology, like the steam engine before it. General purpose technologies drive most economic growth, because they unleash cascades of complementary innovations, like lightbulbs and, yes, factory redesign.

Without question, we need to be informed of the happenings in the world. But modern communication brings into our homes a drowning cascade of the violence and misery of the worldwide human race. There comes a time when we need to find some peaceful spiritual renewal.

There is something incredibly nostalgic and significant about the annual cascade of autumn leaves.

"There was a clatter as the basilisk fangs cascaded out of Hermione's arms. Running at Ron, she flung them around his neck and kissed him full on the mouth. Ron threw away the fangs and broomstick he was holding and responded with such enthusiasm that he lifted Hermione off her feet.

Science fiction readers probably have the gene for novelty and seem to enjoy a cascade of invention as much as a writer enjoys providing one.