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The seemingly simple act of reaching for a cup of coffee requires a lot of effort from the brain. It has to plan a trajectory to the cup, control dozens of muscles, make adjustments based on feedback from the eyes and fingers, and maintain its focus on the goal: a tasty jolt of caffeine. And it turns out that medical textbooks may be wrong about how all this happens. The books show a model of the brain in which the motor cortex is solely controlling movement. But scientists at Washington University School of Medicine in St. Louis have found that previously overlooked areas of the brain's motor cortex appear to link control of specific muscles with information about the entire body and brain.
This article highlighted for me just how sophisticated our brains are when it comes to controlling and coordinating muscle movements. And, it explains why robots such as those made by Boston Dynamics, as sophisticated as they are, still reach and grab for things clumsily.
As it turns out, robots just aren't good at folding laundry. As NPR has reported, machines need clear rules in order to function, and it's hard for them to figure out what exactly is going on in those messy piles ("say, where the underwear stops and where the towel begins").
So, while robots have been developed that can fold specific types of laundry, there's still not a good robot that can do the job quickly, or for all types. It might be a while before you can buy a "Roomba for laundry."
"No problem is so formidable that you can't walk away from it." -- C. Schulz