The article presents a paper on 4K4D, a method for real-time 4D view synthesis of dynamic 3D scenes at 4K resolution. This method uses a 4D point cloud representation and a novel hybrid appearance model to achieve high-fidelity and efficient rendering. The paper claims that 4K4D can render scenes at over 400 FPS on certain datasets and outperforms previous methods. The method has potential applications in fields such as video production and gaming.