Watch MoviestoWatch. 'Talking about Similarity' took place in Amsterdam, on November 30th, 1976. The performance, which lasted ca. 45 minutes, contains two parts that are very different in form, but content-wise form a whole. Ulay begins, Abramovic takes over. This makes 'Talking about Similarity' the only performance in their oeuvre in which they are not both performing at the same time.