This leisurely lecture series is planned as a nine-month-long online course for physics students of all ranks, with an interest in the fundamental description of nature. Ever since Einstein, General Relativity has emerged as an elegant and the most successful tool for our understanding of the cosmos, yet also offered the most puzzling and profound questions in all of physics. The series aims to teach General Relativity with emphasis on its mathematical structures and to cover its most essential features and applications with a view toward quantum gravity and how gravity meshes with other fundamental interactions in nature.

The content is based on the book "Gravitation for Theorists" by the lecturer, a self-contained handbook on the foundation of relativistic gravity. The volume offers unusually detailed expositions, designed thus to encourage self-study, but also compact in comparison by refraining from the usual observational "tests". In these online sessions, a great deal of emphasis will be placed on conceptual issues and foundational tools; we will defer much of the detailed computation to the book itself. 

Sessions are to be prerecorded and archived in a dedicated physics channel: https://www.youtube.com/@well-tempered and to be released there publicly upon the completion of the entire series. In the meantime, each recording's URL will be attached next to relevant chapter entries under the headings of Part I, II, III of this homepage, sequentially throughout the year 2026; this is in part to urge students not to skip and choose.