<So, we are starting to get more and more knowledge about the Vex (then again we still know less about them than every other enemy species besides the Darkness). As this happens, there is a question that still evades us. The Fallen are bugs, presumably reproducing like so. Hive worms have cocoons. Hive have eggs. Cabal presumably give live birth, same could go with the Psions but I honestly don't really know how they work either. What about the Vex? Well, they are first off they are aquatic micro-organisms. They are also classified by many lore masters as a kind of Protist. Protists, while they can reproduce sexually, usually produce asexually. Considering the Vex require a vast network and have reached a point where they have expendable units, let's go with asexual reproduction. Another point brought up by few was the possibility that they might be silica-based. Silicon Dioxide. Silicon is what we use in computer chips and is the 8th current most common element in the universe. Assuming the universe contains more life than just us, then a silicon or even silica based lifeform is possible. Something to back this up is the amount of glass and the references to glass used with the Vex. Silica by itself is a hard compound that appears as the mineral we know as Quartz. Silica when fused can become Fused Quartz, a type of GLASS that only has one ingredient... silica. Based on that, I can assume that Radiolarian Cells have more than just the ability to group together (like Algae), but also form constructs. Ex. the Glass Throne in the Vault of Glass. The weird glass structure in the mission Six on Nessus. The ability to do that also explains important Minds like Atheon, Time's Conflux and Khartion, Archival Mind (despite his 2 second appearance). Their armor is made of glass. So the chassis of Vex can be made of more Radiolarian Cells. What about the Frame? What about the standard Chassis? Well... Vex bodies are typically described as bronze or brass. I went with brass because it's more common. I wanted to see if there is a kind of... "silicon brass". Believe it or not, there is... but it's mostly copper. Brass is copper and zinc. However, Silicon Brass has the added benefit of silicon in it. But what does that prove? Well... not much, but it gives a small backup to the "Vex make bodies out of themselves" thing. However... that really isn't the case... somewhat. The Vex are so advanced and lord knows they might have other elements in them but let's take a turn. The frames are mechanical. They would've had to have been initially made for the Vex to think about making more. In the leaked [url=https://www.youtube.com/watch?v=ECWf_AYj7Ts]Vex cutscene[/url], the Vex bodies are already made when the rest of the liquid goes in to power it. So... are they built like their mega-structures or are they formed like the Glass Throne? In order for the first theory to be true, one initial Vex must've been created. That Vex, then must've learned how to build a replica or better version of itself and passed it on. This assumes the Vex were created, and not another cosmic accident. The second theory can be a bit of a stretch considering that we don't know much about what makes a Radiolarian Cell. However, time and effort can be put in. Hell, maybe the Cells converted other beings... wait... holy shit... Something that supports theory 2 is that both Kabr and Asher were/are transforming into Vex constructs. Supposedly, allowing Radiolarian Fluid into your bloodstream leads to conversion. Asher's arm, whether you believe that Brakion performed surgery or he got some Cells in it, is flowing with Radiolarian Fluid. It has come to a point where he no longer bleeds blood. So there's some more support for theory 2. Anyway, the end result is a mechanical frame hosting a series of tubes filled with Radiolarian Fluid. The frame is then surrounded by either a glass or brass chestplate. And at the very end we have the Vex, a liquid race of biomechanical beings that can have minor manipulation over spacetime and have the ability to convert entire planets into their network... a network spanning millions of units, from a simple Goblin to a Planetary Core. So that's it. That's my post. Did you know that brass and copper and other like metals go through periods of oxidation? The lasting effect is called patina. Patina turns the shiny metal into a dull brown and can even cover it in a neat blue-green film. However, you can still see some remnants of the shiny-ness of the metal. This suggests that Major (yellow-bar) Vex in D2 are older Vex, having served many years in the field... considering that they are literally covered in that shit.>