Policies significantly shape computation’s societal impact, a crucial HCI concern. However, challenges persist when HCI professionals attempt to integrate policy into their work or affect policy outcomes. Prior research considered these challenges at the “border” of HCI and policy. This paper asks: What if HCI considers policy integral to its intellectual concerns, placing system-people-policy interaction not at the border but nearer the center of HCI research, practice, and education? What if HCI fosters a mosaic of methods and knowledge contributions that blend system, human, and policy expertise in various ways, just like HCI has done with blending system and human expertise? We present this re-imagined HCI-policy relationship as a provocation and highlight its usefulness: It spotlights previously overlooked system-people-policy interaction work in HCI. It unveils new opportunities for HCI’s futuring, empirical, and design projects. It allows HCI to coordinate its diverse policy engagements, enhancing its collective impact on policy outcomes.

Voice assistants (VAs), typically promoted as omniscient conversational butlers, still remain below users’ expectations. Interaction designers seem to struggle bringing in user perspectives necessary to develop more meaningful VA applications beyond simple use cases such as playing music. One of the reasons might be the immateriality of cloud-based VA technology making it difficult to comprehend such complex and ever-evolving systems. In this paper, we investigate provotyping as a design tool for ‘materialising the immaterial’. In our case study, teams of multidisciplinary experts devised twelve provotypes to explore intangible VA technology. We present and discuss three generalisations in respect to the role of provotypes for the exploration of VAs. Our findings show provotypes can serve as the necessary props by which we can bring in missing perspectives around this technology and generate material which enables designers to speculate, debate, and sketch out ideas for meaningful futures of VA applications.