“A life thus names a restless activeness, a destructive-creative force-presence that does not coincide fully with any specific body. A life tear the fabric of the actual without ever coming fully 'out' in a person, place, or thing. A life points to ... 'matter in variation that enters assemblages and leaves them. A life is a vitality proper not to any individual but to 'pure immanence,' or that protean swarm that is not actual though it is real: 'A life contains only virtuals. It is made of virtualities.”