alt Hacker NewsAny of his "chalkboard" lectures (preferably in English) in open archives of these universities? YouTube searches only bring up Prof Rabin's lectures aided by slides and presentation (ex: https://www.youtube.com/watch?v=thK_qJqx5mo at Tel Aviv Uni / https://www.youtube.com/watch?v=QCX0Ut0hcWw at Harvard).
There's a chalkboard here (used ~44:50):
Cryptography and Preventing Collusion in Second Price (Vickery) Auctions - Michael Rabin
https://www.youtube.com/watch?v=4cmCBVrVQqc
No chalkboard but more lectures
https://youtu.be/nbePExzSTQ0?si=KkTbwfwj5rMtQUhD&t=681 - פלאי תורת ההצפנות ויישומיה לתהליכים פיננסיים (The wonders of cryptography and financial applications)
https://www.youtube.com/watch?v=N_LG5Hcc8mM - Lecture 7 - Zero Knowledge Proofs and Applications Michael Rabin
For those interested in searching for more here's a Hebrew search string you can use: "פרופסור מיכאל רבין הרצאה" interesting enough Google and YT search yield results in English and Hebrew but possibly different ones than just searching in English.
EDIT: One more:
https://www.youtube.com/watch?v=30wkb46BE1k