The whole system has a clean architecture: X supplies the public behavioral graph. Premium/Premium+ supplies a paid, high-signal user cohort. Grok supplies the private conversational layer. Image/video generation supplies visual preference data. Voice/personality/companion features lower inhibition and increase intimacy. Ads/subscriptions/enterprise/government/API monetize the resulting platform. The S-1 (SpaceX's IPO filing) calls X a distribution and data engine and describes A...