Marc Raibert: Physics-based simulation now critical to robotics development; NVIDIA's simulation tools historically lacked physical realism but have improved

“Physics-based simulation. Now, it has to be physics-based simulation developed by real engineers who have real data and know what the physical robot really is, not a not a video game version of the robot. That's a little bit of dig at Nvidia because in the early days, their simulations were really video game simulations. Now, they've done a lot of work to make them much more physically realistic. There's still some closed parts that need to be open.”