The integration of eye-tracked Siri into visionOS 27[1] marks the first time Apple has wired spatial computing's primary input layer (gaze) directly to conversational AI with device-native visual context. Siri no longer operates in isolation—it now "sees" what you're looking at, understands spatial relationships, and executes actions (texts, calls, calendar blocks, app navigation) without requiring hand gestures or a virtual keyboard. This is fundamentally different from Vision Pro's 2024 launch posture, which treated spatial computing as an immersive content platform. Apple is repositioning it as a head-mounted productivity and communication layer. The competitive and capital implications are material. First-order: this closes the usability gap that made Vision Pro feel like a prototype for early adopters. Enterprise adoption of spatial computing (industrial training, remote support, command-center work) has been hamstrung by interaction friction—you cannot run a manufacturing floor or surgical theater while pinching and swiping. Eye-tracked, context-aware voice input eliminates that friction. Second-order: this reframes spatial computing's center of gravity away from graphics fidelity (Sony's PSVR2 OLED panels, the visual-richness arms race) and toward AI inference and multimodal perception. Chipset performance matters now less for rendering; it matters for on-device understanding—what the M5 Vision Pro can see and reason about in real time. Third-order: this favors vertically integrated incumbents (Apple, Samsung's Galaxy XR with device-native Android AI, HTC's tethered systems with enterprise software leverage) over software-only platforms like Meta's Quest ecosystem, which depends on third-party developers to surface AI-plus-spatial workflows. The moat is no longer "who has the best headset display"—it's "whose AI can understand what the user is looking at and act on it without latency." Beneath this sits a deeper shift: spatial computing is becoming a labor-efficiency platform, not an entertainment platform. The WWDC26 signal is that Apple sees Vision Pro's growth curve running through enterprise knowledge work, remote collaboration, and AI-augmented instruction—use cases where the ROI is measured in time saved and error reduction, not in engagement minutes. This repositions the entire sector. The incumbent hardware players (HTC, Sony) suddenly have enforceable advantage in enterprise stickiness; consumer-first platforms (Meta's focus on social VR and gaming) face a widening asymmetry in platform defensibility. And for AI-inference infrastructure, it means on-device processing power is now a first-class competitive variable—which favors Apple's silicon roadmap and threatens the cloud-offload model that has historically been Meta's architectural assumption.