Nietzsche’s experimental method is not the one used by scientists. Rather, it represents a willingness to look at a matter from any point of view, and to follow out that point of view to all its consequences. For instance, many of us will find Nietzsche’s assertion that all human interactions ultimately consist of a struggle for power quite disagreeable. Perhaps Nietzsche feels the same way, but his experimental method dictates that he cannot discard that suggestion simply because it is unpleasant. He must try it out, see if it works, see if it is a good interpretation of the world. This ability to look at matters from any point of view is crucial to the flexibility of mind that Nietzsche values in a free spirit, and is necessary to the “philosophy of the future” if it is to have the courage to uncover assumptions and prejudices that have glued down philosophy for millennia.