With her concept of agential realism, Karen Barad has gained significant attention in recent years, particularly among scholars engaged in discourse analysis, the sociology of technology, and gender studies. Barad's aim is to establish a radically new foundation for thinking about language, discourses, and things. In her highly regarded essay, which is now available in German for the first time, she advocates, based on the epistemological considerations of Danish physicist Niels Bohr, for re-measuring the boundaries between objects, our instruments, language, and human observers.