Posted by Mark Zuckerberg himself, a new video confirms that the social media behemoth is currently working on artificial intelligence technology that will describe images to blind users. As part of Facebook’s ongoing mission to make social media as accessible as possible, the new endeavor is unprecedented. Although Zuckerberg admits that the company is still in the early stages of this technology, it is clear that the potential for future development is immense. In the video, Facebook allows blind users to use a beta version (of sorts) of the feature. The reactions are moving as they describe what this means to them and how they are able to perceive the world in a new way. Check out the full video above and learn how Facebook is developing the technology.