There is a great article by Dr. Shane Oliver on booms, busts and investor psychology where he explains how the psychology affects the boom and bust cycles of the markets. This is just a rehearsal of the same ideas that were so painfully demonstrated during the GFC.
Reading article like this simply reinforces the ideas represented on this blog. Have in mind your long-term investment strategy (if investing for the long term, that is).
Booms, busts and investor psychology (link)