“…Interestingly, Urry's (2007) focus on the material and communicative constitution of mobility systems seems to have led to the neglect of knowledge and concepts as the immaterial counterpart to material objects circulating in time and space. This resonates with Jöns's (2001Jöns's ( , 2003Jöns's ( , 2006 critique that actor-network theory has undervalued the focus of social constructivism on human interests, beliefs, and prior knowledge when stressing the material constitution of scientific knowledge production (see, in particular, the debate between Bloor [1999] and Latour [1999]). Her subsequent integration of these two complementary research foci in a "trinity of actants" outlines how both material and immaterial entities are produced, mediated, and transformed through the practices of humans and other "dynamic hybrids", including non-human organisms and certain machines such as robots (Jöns, 2006), and thus need all to be considered as mediators and outcomes of socio-cultural/material relationships (Jöns, 2001(Jöns, , 2003.…”