Mark Zuckerberg just told the Financial Times that closed AI models are a strategic dead end — and that Meta's future is open. The headline grabbed Hacker News (500+ points, 460+ comments). But beneath the AI discourse lies a quieter truth: Meta has been running an open platform play for years with Quest. Open store. OpenXR. Sideloading. No gatekeepers. That openness is exactly why a two-person studio in India could build AmblyoPunch — a VR vision-training game for amblyopia — and ship it globally on day one. The Problem: Lazy Eye Treatment Is Stuck in the 1990s Amblyopia affects ~3% of the world. Standard care: patch the good eye for hours a day. Compliance is abysmal. Kids peel it off. Adults quit. Vision therapy clinics exist but are expensive, scarce, and boring. The Pivot: Dichoptic Training in a Game Loop AmblyoPunch uses dichoptic rendering — each eye gets a different contrast Gabor pattern — so the brain must fuse both images to play. You punch coins. You dodge red spikes. You進む四つの段