All cultures through all time have constantly been engaged in a dance with new possibilities of life.

The line frames culture as dynamic rather than static: human societies are always improvising in response to changing environments, technologies, encounters, and ideas. By calling this process a “dance,” Davis emphasizes reciprocity and creativity—cultures do not merely endure change but actively negotiate it, selecting, adapting, and reimagining “possibilities of life.” The claim also aligns with his broader defense of cultural diversity: if every culture is an experiment in being human, then the loss of any one tradition diminishes the range of solutions, meanings, and ways of living available to humanity as a whole.