Because ubicomp is, by definition, present everywhere and at-all-times, it may either interfere or facilitate contextual actions, and hence change the ways in which we act upon and perceive the environment. For Greenfield, "we" –ubicomp designers– "are uniquely positioned to affect the emergence of this technological milieu for the better." We can partake in the paradigm shift from technologies that provide uncertainty, insecurity, and that violate privacy, to designing technologies that empower users, and that support ethical, social, and environmental well-being.