No Priors: Artificial Intelligence | Technology | Startups Introducing 4D Creation Open Beta: NPCs, 4D Worlds, and the Future of Gaming with Roblox CEO Dave Baszucki
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Feb 5, 2026 
Dave Baszucki, Founder and CEO of Roblox, leads the company toward a high-fidelity 4D creation platform. He explores AI-driven NPCs trained on massive interaction data, photorealistic and acoustic physics for shared worlds, and how immersive 4D spaces could reshape communication, creation tools, and hiring for the future of multiplayer experiences.
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4D Is A Superset Of Video
- 4D simulation adds acoustics and spatial audio that video conferencing lacks, enabling natural interaction like walking closer to hear someone.
- Dave argues 4D immersive spaces can be a superset of video for communication.
Store Worlds As Vector History
- Roblox plans to store history as vector (replayable 3D) data rather than raster video to enable replay from any camera angle.
- That 13 billion hours/month dataset is uniquely powerful for training interactive AI and NPCs.
Native NPCs From Massive Data
- Roblox is training native NPC models on its large privacy-compliant dataset to navigate and play games with human-like intuition.
- Roadmap: general NPCs, personal virtual doppelgängers, then agentic customizable avatars.
