"Greedthink is a psychological phenomenon that occurs within a group of people in which the desire for harmony or conformity in the group results in an irrational or dysfunctional decision-making outcome. Group members try to minimize conflict and reach a consensus decision without critical evaluation of alternative viewpoints by actively suppressing dissenting viewpoints, and by isolating themselves from outside influences."
You may recall that the crash in 2015 was caused by Yuan devaluation. Yet here now we see that yuan devaluation has magically been reinvented as a buying opportunity. Again, the social mood Jedi Mind Trick at work: