These alternative futures can be thought of as plausible, possible and preferable. They are not predictions. The important thing about creating future artefacts is that they give people a tangible way to think about an unknown future. They enable researchers, managers or policymakers to see how people respond to and feel about the ideas about the future embedded within them.
https://openpolicy.blog.gov.uk/2015/02/26/policy-making-through-possible-futures/