Theories

Alright, so my theory goes something like this... There have been many rumors about the Vex, about their time traveling abilities, the black garden, the vault of glass, their immense technological advantage to every other group currently known to the average guardian, but maybe, there more "Human" than we originally thought. Take this scenario: Hundreds, Thousands, maybe even Millions of years later from the current Destiny year, Humanity has advanced further than anyone could have thought, but they see that they are alone in this universe, except for the darkness they still fight. Humanity collectively moans a sigh of loneliness, no one to share what they've learned with, no one to watch over, and for some, no one to use. As is naturally human, there are still people who believe in a god or gods, and they don't believe we were meant to be alone. They begin using their advanced technology to try and summon the god they believe in, and one day, their prayers are answered, but this is no god. It is a dark force from another dimension, some would go as far as saying this would be the Hive, but I believe it would be an evolved form of hive, much more dangerous than the ones we fight today. The humans naturally do everything it says, and start fighting people in the systems surrounding them. Soon the dark power demands that they grow stronger, and they use advanced technology to augment their bodies and give themselves super human abilities. By the time anyone notices it as a problem, they have too much power, own too much land, and are too strong to fight. This group enslaves all of their captives and makes them like themselves, cyborgs, under control by their supposed god. This endless campaign seems, well, endless until the last group of enemies makes their own version of a god. Something man made, created by flesh and blood, as well as technology. They give it all of the knowledge they have in a last chance attempt to save mankind. I know what your thinking. Your first question is "But the vex are robots, not cyborgs!" and you would actually be wrong. On a Venus story mission your ghost actually says that, quote on quote, "Vex mind cores are actually biological!" This proves my point enough that far. The ghost also says in that mission, "It doesn't match any known life on the database." That's because the humans millions of years in the future have evolved, and changed, therefore the ghost couldn't match them. Anyway, back to the story. The last strands of humanity in the universe, pressured by their enemies and their new threats, start researching time travel, so they can send their creation back, and make humanity strong, or, find someone to protect it. Humanity makes a gate, that once on travels through it, they will be taken back to a certain point in time. There is, of course, a huge battle in space to stop the creation from traveling back, the Vex and the last of Humanity fight in the largest battle in the known history of the Universe up to this date. With humanity losing, and the gate in danger, one brave Exo has an idea. She tells the traveler to give them the knowledge it holds, so they may have mercy. It works, and the Vex cease fire, for about 5 minutes. They issue this information to their collective minds, and decide there is one logical plan of action. Though it may change the course of everything that has ever happened in the universe, they decide the only way to stop this from happening is exterminating the human race, before they summon the hive beast. They also now know that the hive is their enemy, and attack their false god, which causes him to call in his soldiers. The two armies fight, and unfortunately, the human army is exterminated in the cross fire. The brave Exo from before decides she has to go back in time with human kind's creation to ensure human kind's safety. At the time that the two go through the portal, it start destabilizing, and the battle becomes a rush to get as many soldiers in that portal as possible before it collapses. all of the vex and hive that made it through had a battle, and the hive won, exterminating the Vex foe. But, a few Vex cruisers were in the portal when it collapsed, and were put into a place outside of space and time. They used the knowledge the creation gave them (known to us as "The Traveler") and made their own dimension, where they ruled. They even made their own god, that resided in their black garden. They also realized they lived in a place of infinite possibility, and they made their own rules, and other portals to leave that place and go to any time or place they wanted, a useful tool for what they were trying to do, stop humanity before it kills itself. The hive that made it through made it back to their dimension, where they told their ancestors of their situation, and agreed to help them find the traveler, so they can destroy it control the future, and past. On their travels they meet the cabal, and either scare, enslave, or pay them into working for them. After thousands of years, The Traveler finds the fallen, and teaches them the knowledge they need to fight back the Hive. Unfortunately, The Fallen were not ready to fight both the Hive and Cabal, and the traveler retreated, with the fallen following, only to be destroyed. They then teamed up with a small group of the Cabal and ran away towards the traveler, where they hoped they could find refuge. Eventually , around 2050-2075, The traveler is found on mars, and the golden age begins, the collapse happens, the city is built, everything happens normally considering the current story of Destiny, except for one thing. When they Vex time travel and change something, they create two realities, one where something was changed, and one where something wasn't. These changes have tremendous influence on how things play out in a given reality. There is one reality where the Vex changed nothing, and that is the reality that results in the death of the human race, and there is another reality that the Vex change everything and the human race also dies. The traveler knows this, so it makes the guardians. Guardians are the only beings in reality that can change the path of a reality without making another one. It really does bring new meaning to the phrase "guardians make their own Destiny." Anyway, the guardians must collectively fight back against the darkness, defeat the hive, prove wrong the Vex, make peace with the Fallen and rouge Cabal, fight the real Cabal, and stop the future humans from summoning the Hive in the first place. Sounds like one hell of a DLC, huh? But that brings up some questions, like, if there was no Hive in the future, would the traveler ever be made? Well, maybe that's what the shifting picture in the games intro represented, the Traveler being sent back to every reality to stop the darkness, and if so, is that the travelers life now? taking bullets, giving knowledge, being hunted, and then, at the end of the day, doing it all over again? If we don't keep sending the traveler back will we cease to exist? Or will we just be different people. Is it even possible to save every reality, with the Vex opening and closing doors all the time? Only time will tell. And just remember, Guardians Make Their Own Destiny.