Alex functions as a short form of Alexander or Alexandra, inheriting the Greek sense of "defender" while shedding some of the longer name's formality. Its brevity and unisex use have made it read as adaptable -- a name that moves easily between contexts rather than announcing a fixed identity.
We are born at a given moment in a given place and like vintage years of wine we have the qualities of the year and of the season in which we are born. Astrology does not lay claim to anything else. - C.G.Jung