Marina Jirotka (Professor of Human Centred Computing) and Helena Webb (Senior Researcher) work at the University of Oxford’s Department of Computer Science, in the Human Centred Computing theme. From 2016 to 2018 they participated in the research project “UnBias: Emancipating Users Against Algorithmic Biases for a Trusted Digital Economy”, a collaboration with the Universities of Nottingham and Edinburgh. The project focused on questions such as “Are algorithms ever neutral?” and “How can we make sure that algorithmic processes operate in our best interest?”. Building on the UnBias findings, the team has recently begun a new study, ReEnTrust, examining mechanisms to help foster trust between users, systems and algorithms. In a Skype interview we talked to Marina and Helena about the opportunities and challenges of algorithmic decision-making and about approaches to address the latter.