>>12208900A configuration of matter that displays some kind of growth or reproduction of the configuration or both, local homeostasis of the configuration for a finite period of time, and internal motion satisfying criteria that biologists imagine are valid.
Without the crucial step of letting biologists dictate things we wouldn't have the rule that viruses, free lipid glycerides, convective currents, Belousov-Zhabotinsky interactions and fire are not life.