New technology is undoubtedly changing world politics. But does this necessarily require new theories? In this interview, we explore the challenges facing a (political) theory of technology and how to understand the novelty of technologies such as Big Data. Ole Wæver recounts his early interest in technology and how theorizing technology demands that we look at different kinds of acts. Some of the main challenges include unintended effects and the assessment of decisions made within complex systems. We go back to Langdon Winner’s early work on the political character of technology, and discuss why his ideas might be more valuable than concepts often subsumed under the heading of ‘New Materialism’