And when other, independent Twitter apps succeed, so too will Twitter. Twitter can take one last swing for the fences and try to recreate the power of the open Web -- and in the same move, perhaps sidestep much of the coming maelstrom of content policy criticism -- by separating out the platform it manages from the “presentation layer” that sits between the platform and its users, and includes both the user-facing app as well as behind-the-scenes content filtering, prioritization and recommendation. In addition to maintaining a reliable and high-integrity content platform, Twitter would continue to offer its own user-facing app with a default presentation layer, which would presumably incorporate a well-developed moderation system.