Our interactions with paper are so habitual as to be subconscious. Paper is an inextricable component of our daily lives. In this paper we present the crafting of, and the reflections on, four prototypes; these prototypes explore how adding new functionality through paper circuits can enrich interactions with paper. We define paper circuits as circuits that have been made through the process of printing or applying conductive ink onto standard paper in order to form electronic or electric circuits. We will provide reflections on not just the benefits of paper circuitry, but also how the newly added affordances gained from paper circuitry effect the experience of paper interactions. This paper will illustrate how this new evolution of paper can be used to produce cheap lightweight ubiquitous electronic products, new art forms, and most importantly enhance the user experience of paper without losing the existing wellloved affordances that paper currently possesses.

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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 difcult 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 fndings 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. CCS CONCEPTS• Human-centered computing; • Interaction design; • Interaction design process and methods; • User centered design;