2939, Sorry Blue, never learned xD But talking about Flux...id like you guys too know there is such a term as "Flux Shifting" that the Vortigaunts use to communicate with little effort over extreme distances. For example, in the beginning of Half-Life 2: Episode 2, the Vortigaunt that finds Alyx and Gordon after the hunter attack, uses Flux Shift to summon his kin. With very few vocal noises, he provided them with loads of detail.