[Radix]

Excuse me for my long time held view that Historians are proficient in stuff that already happened and not at all about future events.

[Cronos]

True, but looking at the past can predict the future to quite an extent. The various fighting of the Diadocchi left the Greek Empires open to being conquered by Rome. And smaller powers have been shifted to irrelevance by larger agglomerations — Rome is a perfect example or Assyria