With the way market reacted yesterday and today, I doubt if this will be true, the crypto market is going down steadily and there have not been any major increase since this year, so i don't think December will make any difference, maybe next year.
It is always funny to read the treads of 2 or 3 months ago. Some predictions are sooo absurd now. Gosh, if only we could have known what to expect from this crazy market!)))