My MSc thesis from 2016 critically evaluating the solution to the Ship of Thesis problem which denies that there ever was a ship to begin with (mereological nihilism).
That sounds like a fascinating take on a classic paradox! Tackling the Ship of Theseus from a mereological nihilism angle must have given you a unique perspective on the idea of identity. Philosophical debates like this always make me rethink how we define what “really” exists, and I bet your thesis is a thought-provoking dive into that world.