Recent research on radicalisation is pointing towards a set of pathways that may lead people towards terrorism. However, scholars such as Marc Sageman, Olivier Roy, Gilles Kepel and others are stressing different aspects as the key factor or factors. Their analyses are not necessarily contradictory, but highlight that searching for a single magic key to unlock what radicalisation is may be problematic. Indeed, even the very term radicalisation may itself not help to clarify what is at stake, if it suggests it is something other than socialisation into a specific worldview. This project seeks to pick apart and assist rethinking the current empirical and theoretical data and analysis.