I actually may have small bits and pieces to add onto this theory. 1. I noticed lots of people complaining about AI fighting mechanics in the beta and how both races (Hive and Fallen) seemed to act way to similar. Coincidence, I think not. It didn't hit me till watching this and reading some comments that we have seen many videos of races in action before and after the beta. In all of these the Hive and Fallen use similar fighting strategy's/mechanics, whereas the Cabal just march in and hope to do some damage before they get shredded, and the Vex seem to do the same thing. So maybe just maybe the reasoning for the Hive's and Fallen's strategy's being so similar is merely because they are technically speaking the same. 2. I noticed that on the moon you don't really see Hive outside of their caves and and such, same thing goes for on earth they tend to stick very close to each other or what we might call a base. And with the Fallen it almost seems reversed I noticed that they still like to build bases into mountains or underground, but you see more Fallen out roaming the landscape's. but it's almost as if (this is if Killworthy's theory is true) the effects of turning into a hive reverses that order. Almost as if there behaviors change. Maybe out of fear, or well this is where things get really crazy. Do you remember In one of your past videos you stated that Fallen act like a pack of wolves. Well what if after maturing they just became a stronger pack, more trusting, smarter, and larger in numbers cause let's face it you never see just a few hive. Because this perfectly supports the two theories staton one that the Hive our just mutilated/infected Fallen, and two that the Fallen are in fact connected to the crazy overload of wolf connections in Destiny. Edit: Alright as promised before in this comment I was talking about AI behaviors and I said "The Cabal just march in and hope to do some damage before they get shredded, and the Vex (note) seem to do the same thing in a more organized fashion. Which leads me to believe that if the Hive and Fallen are connected maybe the Cabal and Vex are to. I remember hearing awhile back that the Cabal are the strongest military power in Destiny, and in order to have great military strength you must be very advanced maybe even electronically advanced. We also know of Cabal Psions which are much smaller than the average Cabal an are mechanics which seem to have magical powers to control things with their mind. (note: it would be hard for a bulky Cabal to build stuff). Anyway my theory is that maybe the Cabal decided to create the Vex a robot army since they were so, I don't know let's say advanced they decided to build an army to do their dirty work. Well then something very cliché happens and as we see in many movies the robots turn on their creators. This would explain why the Vex are so advanced, and why they despise the Cabal. The reason the Cabal are not as advanced is because when they built a robot army they started slacking a little not worried about needing any more militant power, and when the Vex turned on them the took a it all with them. Every last idea as of how to create another. It also explains why the two races fight alike, because the Vex were programmed to fight like the Cabal. Also maybe the Psions were praised in what would've been there golden age and are now the lowest "ranked" you could say Cabal because of the doom they brought upon the Cabal.