How to build a ‘SpongeBob-sized’ digital brain for your own brain

Now Playing: Scientists are developing a new type of prosthetic device for amputees that can help them control their prostheses and get around more easily.

Now Playing – ‘Basketball’ game hits new milestone in China as Chinese authorities announce it has banned players from wearing the headgear in the game Now Playing New York City’s largest Muslim community joins protesters in demanding that Mayor Bill de Blasio cancel a planned visit to the city’s mosques Now Playing What you need to know about ‘Black Panther’ star Chadwick Boseman Now Playing Trump Jr.’s son claims he was ‘caught up in a conspiracy’ to get into Trump Tower