At the start of February 2026, it was ten years since I was first appointed Professor, at the age of 35. It is also more than fifteen years since I submitted my PhD at the University of Bath in September 2009, before passing my viva with minor corrections later that autumn. I have written a few of these short “time passing” posts over the years — five years after the PhD, five years of blogging, and new roles — partly as a way of marking moments that otherwise get lost in the rush of the next...