Grimoire cards. Seriously. Yeah, I know many hate them and that Bungie are integrating Grimoire into D2 via cinematics and the like, but there's an entire Grimoire/Lore subculture amongst the Destiny player base that is really intriguing. Interpreting and extrapolating gaps in the Lore through the Grimoire can be fascinating to read up on where many a smart person have collaborated together and published their ideas, and even investigate for oneself. However, due to popular demand, we're now getting it fed to us visually in game like the zombies we apparently are. Ah well. Another win for the 'mindless gaming dead' I suppose. Hurrah, maybe.