Interests: Dynamics of all kinds! Sample of ongoing directions: (i) exoplanet & star spin dynamics; how to tilt stars (& comparisons to observations) and planets (connections to habitability). (ii) binary black hole formation due to gravitational perturbations of a distant third body (iii) seismology, both in planets and in stars (WIP), (iv) tidal dissipation in stellar binaries, mix of simple numerical and analytical work.