alt Hacker NewsG1 is a small robot designed for agility, and can't do much real work. That's why it uses lower reduction actuators with low sustained torques, and it'll overheat easily in continuous work. Many of the larger robots (Optimus, Figure, BD Atlas) use higher reduction actuators with strain waves or planetary roller screws. They're designed for higher sustained torques, but are also less agile and less safe for humans to be around. They're also quite heavy (BD Atlas is 90kg), and still can't match human performance.
yes, for heavy lift and bulk manipulation high gear ratios are still necessary. Maybe someday cable drives will be feasible. No question that we are not at human performance yet or that there isn't a ways to go. This is the specific claim I was arguing against:
> There has been no innovation in robotic actuators since Honda's Asimo.
I believe we are 100% making tangible progress and the technology is improving faster than it ever has.