This thread seems to be corrupted (if my memory serves me correctly). I’m positive that Rainman asked me to summarize one of the videos, and I’m certain that I asked somebody if they could provide an explanation for the variation of CMB.
Mod edit: This is in reference to this thread:
It’s not corrupted, just incomplete. This thread is one of several which I still need to bring posts over which were made after the software change. See this announcement for details:http://timetravelinstitute.com/community/threads/forum-rollback.8772/
The “complete” version can be seen here:
Everything will match up again at some point 
Okay, that explains it… I thought I was possibly losing my marbles or a time-traveller was somehow interfering with the thread. 
Many threads started losing posts with the last update of the other forum software. So if you could restore from a backup to before that update you would see what went missing. I know before that I was noticing replied to text was mixed with the reply. Then an update seemed to restore the replied to text by removing the reply completely.