By Joanne M. Pierce /The Conversation For decades, winning an Olympic medal has been described as the Holy Grail of sports. Athletes aren’t the only ones in search of a Holy Grail. For example, in 2012, when physicists discovered the Higgs boson, a particle viewed as one of the fundamental building blocks of the universe, it was described as “ a true Holy Grail.” In the same way, many automobile enthusiasts list several collectible cars as Holy Grails because they are so rare that it is a real challenge to find them. In general, people refer to a goal that seems almost impossible to reach as a Holy Grail. More technically, the term Holy Grail refers specifically to the cup
