indeed, i'm only starting to study sartre and its admittedly basic and therefore narrow in its viewpoint. if you guys have anything to add, feel free. i'd love to get a little more info on radical conversion.
ok, forces in nietzsche. nietzsche in <u>the genealogy of morals</u> describes two types of forces that are present in the world: active and reactive. active forces seek to go to the limit of their abilities; reactive forces seek to separate active forces from what they seek to accomplish. people, events, historical epochs are all products of the dynamics of forces. forces have a "will to power" which is the process by which forces attempt take ahold of practices to express themselves.
one can take the doctorine of forces either ethically or as an ontological doctorine, his writing never specifies which he believes in: using it to evaluate whats going on in the world as either active or reactive or that forces actually exist and they're doing their thing right now.
i know its a really cursory and garbled explanation, but i'm in a hurry
hopefully it helps