Congratulations to Tommaso Macrelli for passing his PhD confirmation examination today (Friday 12 July)! The examiners were Jan Gutowski and Andrea Prinsloo . The title of Tommaso’s project is “The L-infinity origin of tree-level scattering amplitudes”. The principal supervisor is Martin Wolf and the second supervisor is Alessandro Torrielli. Tommaso‘s latest preprint can be found on the arXiv here.