' A Figment of Imagination '...

There is a philosophy that says that if something is unobservable -- unobservable in principle -- it is not part of science.. If there is no way to falsify or confirm a hypothesis, it belongs to the realm of metaphysical speculation, together with astrology and spiritualism.. By that standard, most of the universe has no scientific reality -- it's just a figment of our imaginations. ....................... Leonard Susskind