Jan Leike — Education: PhD in Machine Learning, Australian National University

NoteThe source directly confirms all three components of the claim: (1) PhD degree from Australian National University, (2) field is reinforcement learning (the claim says 'Machine Learning' which is broader but reinforcement learning is a subfield of machine learning, so this is consistent), and (3) supervised by Marcus Hutter. The source also confirms the research focus on universal/nonparametric reinforcement learning through the PhD thesis title. The only minor variation is the source specifies 'reinforcement learning theory' rather than the broader 'Machine Learning', but this is a narrower specification of the same degree, not a contradiction.