Is it just resistance to a system reaching equilibrium? Or is our suffering somehow more real than that of comparatively uncomplicated "disturbed systems", like the pendulum that must swing back and forth while "wanting" (i.e. tending, in the absence of interference) to come to rest? Why do people tend to postulate phenomenological "inner worlds" corresponding to their past and future selves (upon which those phenomenological inner worlds are dependent), as suggested by what we call memories and other subjective phenomena, and to those of other people, but not other systems? Are these the last gasps of dualism and a futile attempt to centralize utility in the human (and maybe animal) sphere thus enabling a sort of comforting presumption of group-level self-importance in ethical reasoning, or is there something more to them?