ALTTAB is a Czechoslovak collective of designers, technologists and researchers gathered around a shared interest in ethical implications of emerging technologies. Using the methods of participatory design fictions and speculations, the collective develops experimental platforms for collaborative prototyping and enactments of possible futures. We organize public workshops, field trips and meetups focused on themes around the uncertain role of technology innovation in local everyday-life contexts. ALTTAB was founded in 2018 by Lukáš Pilka, Tereza Lišková, Michal Kučerák, Lenka Hámošová & Markéta Dolejšová.