Cosmos just dropped something interesting for their synthetic data pipeline. They've built out an end-to-end system that cranks out photorealistic traffic scenarios—think virtual cities with multiple agents interacting in real-time. The workflow's pretty straightforward: simulate complex urban traffic patterns, render them into high-quality video feeds, then package that data for AI training purposes. Could be useful for anyone working on autonomous systems or urban planning models. The fidelity looks solid from what they're showing.