I am a cosmologist, member of Imperial Astrophysics, and currently Director of the Imperial Centre for Inference and Cosmology. I study the history and evolution the Universe as a whole. I am especially interested in the interpretation and analysis of cosmological data using principled Bayesian statistical techniques.

I am the author of The Random Universe, published in November 2025 from Yale University Press.

Projects
The Planck Surveyor Satellite. Euclid. LISA. The Simons Observatory

Web pages
My blog is more up to date, but not entirely academic.