A Gadol is one of the highest accolades Judaism knows to bestow: a top scholar. It takes at least 40 years of non-stop adult study to get there, along with various other requirements. Shmuel Rosner has some glum thoughts about why there aren't any being produced.
Yet another reason for reflection this year. Rosh Hashana isn't really a holiday, in the "we're having a great time" sort of way - but Id el-Fiter is. So if there are any Muslim readers here (I doubt it), may they have a fine holiday; for the Jews among us, Gmar Tov.