As in eliminating the need for real actors.
Take a look at this under-2-minute video of Electronic Emily, a digital re-creation of actress Emily O'Brien (The Young & The Restless), using Image Metrics computer-generated imagery. All of her facial movements and expressions were digitally developed from a short clip of real Emily, and then re-rendered pixel by pixel to achieve incredible lifelike realism.
Keep in mind, this is not the real Emily. It's animation.
Click here for the complete Mail Online article.