Ask HN: What are the best MOOCs you've taken (2023)?

Reducing Gun Violence in America: Evidence for Change <https://www.coursera.org/learn/gun-violence>

Statistical Mechanics: Algorithms and Computations (Coursera)

Link added: https://www.coursera.org/learn/statistical-mechanics

Does MOOCs do a big impact in your career after 10-15 years in the workforce? Most of them (from software-related topics) are about foundational topics and introduction to technologies. I suppose it is to get more students enrolled in the MOOC. Have you encountered any MOOC that was pivotal in your career after 10-15 years in the workforce?

TL;DR: I wonder if there are MOOCs directed to seniors. What are your favourites?