[b]WARNING[/b]: This post is not for the faint of heart. It contains advanced modern physics, including but not limited to: branes, higher-dimensional space, lower-dimensional space. In the mission The World's Grave, your Ghost mentions that the Hive have broken something known as the Beckenstein Limit. I know I'm not the only one who had no idea what that was at first. Wikipedia defines it thus: [quote]In physics, the Beckenstein bound is an upper limit on the entropy S, or information I, that can be contained within a given finite region of space which has a finite amount of energy—or conversely, the maximum amount of information required to perfectly describe a given physical system down to the quantum level.[/quote] In short, the Beckenstein Limit is a hard stop, limiting the amount of information that can possible be contained in a finite region of space. Then how could the Hive have broken this limit, crammed more stuff into a finite space than should be possible? One physics book I've been recently reading may have the answer. It talks about higher dimensional spaces, both very large and very small. Based on this, I see two explanations as to how the Hive store their info in the World's Grave. [b]1.[/b] Tiny rolled-up dimensions. Say you took a (roughly) 2D piece of paper and started to roll it up. If you roll it up tightly enough, it will simply look like a (roughly) 1D line. Similarly, if you take a 3D coordinate grid and roll up the z-axis (height) tightly enough, it will look like a 2D plane. It could be possible that the Hive have harnessed an extremely (extremely) tiny rolled-up fourth spatial dimension to store their info. This would be rolled up so small that all of our technology would be too crude to detect it. [b]2.[/b] A hidden higher-dimensional space. Our [i]observable[/i] universe exists in four dimensions: three of space, one of time. It's conceivable that this exists on something known as a brane. A brane is a lower-dimensional section of a higher-dimensional space, known as the bulk. Typically, particles and forces (with the exception of gravity) are confined to a brane, but it's plausible that the Hive somehow have punched through into the bulk and stored their info there. Of course, it might be something simpler. The World's Grave might stretch across different realities, storing a bit of info here, a bit there. Or it might be just Bungie being Bungie. But I'd like to think it's something more than that. Or it might be me overcomplicating things