Porstan (Term)

An intoxicating beverage that Simes favor.  It's aged in wooden caskets and picks up chemicals from the wood that react with the mix producing chemicals that affect a Sime the way alcohol would affect an Ancient.  Simes don't react to alcohol or even heroin the same way Ancients or Gens do.  Gens don't react to drugs the same way Ancients did, which has implications in the Interstellar era.