Definition of Brain Drain. Brain drain can be described as the process in which a country loses its most educated and talented workers to other countries through migration. This trend is considered a problem, because the most highly skilled and competent individuals leave the country, and contribute their expertise to the economy of other countries.
Olives, like many other kinds of produce such as potatoes and sour cherries, just aren't something that you eat raw. Unprocessed, straight off the tree, they are bitter, very bitter, and the green ones even more so than ones which have fully ripened to black.
One thing is certain: You do not eat the olive raw. Fresh olives have a bitter substance that makes them unpleasant to eat raw. This bitter substance must be largely or entirely removed as the fruit is prepared for market. Olives abroad are grown first of all for their oil.