For those who are experienced in the markets, having that “every day is a Sunday” feeling shared by many spelt signs of a possible meltdown looming over the horizon. In other words, the deemed unrealistic feeling that things will keep going up is called “irrational exuberance”, a term made famous by the then Federal Reserve chairperson Alan Greenspan back in the mid-1990s when he was describing the internet bubble, which eventually popped. Going by English definition, the roots of irrational are purely psychological and emotional, as opposed to rational where objectivity and fundamentals hold key. Throw in the word “exuberance” which means excitement and is already a mental state, we can see why irrational exuberance is something we need to be wary of when it reared its head in the markets. Now back to the blog post title, are we able to have a thing called “rational exuberance”? It...