For those struggling to find it, it's just farther down the list. This is a new process (posting early) so we’re still working out the kinks. Ideally, when a vidchat is posted early, so comments can be collected for Q&A purposes, Dr. Farrell will change the date of the post on the day OF the vidchat. He can’t do so BEFORE, because then it becomes a SCHEDULED post. But he can change it day OF. And that will move it to the front of the line. Meanwhile, it’s 4th in line (but there) because other stuff has been posted since.
SEPARATELY, the post is dated January 29, 2020. That MIGHT be a typo on the Doc's part. But more likely it's because 2020 never ends.