Japan's latest big thing: 'virtual YouTubers'

YouTube erected a platform where commoners could climb the ladder to stardom. Now, the video-sharing giant is seeing another wave of new talent diving into a glittering entertainment scene. These entertainers are called "virtual YouTubers," or "VTubers," and are represented by digital avatars that look like anime characters. Almost exclusively a Japanese phenomenon, at least so far, these virtual talents have proliferated rapidly over the past several months and people in the industry, together with observers, predict the movement will only accelerate. Following are some questions and answers about virtual YouTubers.