The Vex are good not evil. The only reason they seem evil is because they were accidentally thrown into our dimension by Crota. After fighting the Hive and Taken they realized that the best way to stop them is with "sword logic." They accepted this logic universally after finding one of the Worms, Black Garden, and now want to defeat everyone in our realm by programming themselves into our laws of "Physics." They are not doing this because they are evil. They are doing this because they see it as the only way of surviving. The following timeline makes it more clear: [spoiler] 1. Crota is tricked into bringing the vex into our universe. 2. Vex and Hive/Taken fight for centuries. Oryx succeed into "taking" the Vex Mind leading the battle but not before that Mind succeeds in sending out all of its info on the hive to the vex. 3. Vex use that info and travel through space and find one of the "worms" in Mars. The Worms are Generals of the Darkness. So far Oryx leads a successful Army. 4. Unable to understand the worm and seeing the power of religious influence the Vex deduce that the Worms are to be praised as Gods and that having a religion works better than their current system thus far. 5. The Vex protect the Worm by removing it from space and time and leave it in the Black Garden. Perhaps they now want to find the other worms and do the same. They deduced that species like the Hive wrongfully used the Worms. 6. Upon returning from the Black Garden the Vex traveled to Venus, Mars, And Mercury in the past and stayed there running simulations and tests to try to defeat the Hive. Vex deduced that the best way to defeat the Hive was by removing them from reality. 7. To do the aforementioned the Vex created the Vault of Glass on Venus and began testing it. Along it they created the Vex Mythoclast mainly to defeat the Hive. 8. The Vex also Created Citadels in Mars (Picture somewhere proving this, Google it), Venus and Mercury as the ultimate weapon against the Hive/ Other Worms. For some odd reason the other planets were left out. 9. Not knowing where to find the Hive or the Darkness/Other Worms the Vex became dormant and waited for them to arrive. This took billions of years. Who knows what else the Vex did. All we know is that like the Cabal, the Vex had to run from Oryx and got prepared. 10. Traveler arrives in Mars and runs into humans. Golden Age occurs. 11. Fallen, after the traveler, entered our solar system and encountered the humans and went to war over the traveler. The Cabal, fleeing from Oryx, also arrived and decided to prepare for him in Mars. This awoke the Vex in Mars. 12. Humans fought the Fallen on Earth and the Moon. The Cabal fought the Vex In Mars. 13. The Hive finally found all four species and entered our solar system. 14. The Vex are fully awoken by the Hive's presence. Due to the fact that it has more enemies at the moment it turned Mercury into a Machine immediately. 15. Full blown war occurred. The Vex used Mercury to its max and annihilated most of the Hive Fleet and anyone in that path. On Earth the Traveler and Warminds annihilated most of the Hive and Fallen. On Mars the Cabal succeeded in destroying the Citadel but the war was put to halt by the Warminds. Both the Vex and Cabal suffered a great loss by this and ended the war. 16. The Vex could have finished the rest of the Hive but they wanted Oryx, Crota and his Worms. So the Vex stayed low and moved to Venus to continue their experiments in the VoG. They also stayed in Mars to rebuild their Citadel and prevent the Cabal from ruining their plan. 17. Vex knew that with the few Hive left on Earth and the Moon that Oryx and Crota will eventually arrive. 18. Traveler, also tapped out, used its last bit of energy to defend the humans and so created ghosts/guardians. The traveler then went to sleep, perhaps to regain power. 19. The Fallen requested for more troops on earth and the moon. The Guardians tried to wipe out the Hive from the moon but failed upon Crota's arrival. 20. The Cabal requested for more troops and tried to fight off the Vex, one place at a time, to understand their technology in Mars and hopefully use it against Oryx. They too stayed in Mars and prepared for Oryx. 21. The Warminds disappeared, except Rasputin. 22. Some of the humans that tried to flee from the war were turned into Awoken. Perhaps a result from the Vex Machines. 23. Vex must be succeeding in the future which is why the Stranger visits us to help us. Stranger unfortunately does not realize that the Vex is not the enemy. The Darkness/ Worms and their military, Hive, are the enemies. [/spoiler] So overall, the Vex are nothing but a race of machines that were accidentally brought into our dimension. Like any other race would do, they did their best to defeat the Oryx and the Hive. As logical as they were, they deduced that the best way to defeat the Hive and the Darkness was by wiping the Hive and some Worms from existence and by worshiping and using some worms to their advantage to do all of this. Sword logic was the way. Now if they were truly evil, wouldn't they just go to earth and have a massive attack while the traveler slept? Or go to the Moon and invade it, wiping out the Hive, Guardians, and Fallen all along. They did not even bother much with the Cabal in Mars. The Vex just want to build their anti-Darkness/Hive/Worms machines and prevent anything as such from ever happening again. In other's eyes this may seem evil but to them it is purely logical and moral. [b]The Vex were "dragged" from their "space" into ours. They got defeated by Oryx. Some managed to escape through Vex Gates. Oryx Ordered his son to defeat them. The Vex time/space traveled in this new dimension with two purposes: 1. Defeat Oryx/Hive and the Worm/Darkness 2. Live Forever. (This was their Initial Purpose) The Vex can do number two without rewriting physics, because it is logical, doable and moral. The only reason they now have to rewrite physics is because of number 1. They met an enemy they couldn't beat, Oryx, and an entity they couldn't understand, the worm. Worshiping the Worm still did not help them beat Oryx. So their last resort is to "rewrite physics" so that they can eliminate threats like himself whenever they want, thus the great experiment, Vault of Glass. [/b] All this time all we have been doing is getting in their way and weakening them. We destroyed their conflux in Mars, Venus, and we got rid of Atheon who could have been a key weapon of theirs and for the VoG. Like the Stranger said, choose a side. She clearly knows nothing about the Vex, or Oryx, and perhaps their success in the future makes her hate them. She believed the Vex were the most evil beings ever, but she clearly never met the Taken King. Oryx himself can "control" this evil. What would she have said about him? The Taken must have been defeated in the future. Unfortunately it may have occurred at the cost of Guardians or we just got into the Vex's way. Thoughts? Opinions? Post Below!