Questions and discussion for this lecture live here. Fire away by hitting Reply below 
Hi Sean! I have an issue accessing the lecture notes and Jupyter notebooks for this course (it returns a 404 error, and the download link appears to be unavailable). I would appreciate it if you could assist me in downloading these files.
Hi @Shakib.Ayoubzadeh - this is just a rate limiter on downloads. If you download resources as you complete lectures, you generally won’t hit the limit. Unfortunately this was needed due to bot activity. The limit will reset in a few hours.
Seán