On June 7-8, 2018 at Unisinos university in Porto Alegre, Rio Grande do Sul held a symposium on research through design. Stan gave an address about the use of academic prototypes. The lecture consisted of a video talk, some questions delivered by video, and video answers. The video starts with comments in Spanish from some of the participants of the symposium. The lecture begins at 2:40 and the questions start at 21:07:

https://drive.google.com/open?id=1vi0dQkMjLewwSwZ5vweAO_3Dn87UGMyl