just an example of how we use deep learning to perform voice synthesis and actually emulate someone else's voice, in this case Barack Obama, and also using video dialogue replacement to actually create that video with the help of Canny AI. And of course you might as you're watching this video you might raise some ethical concerns which we're also very concerned about and we'll actually talk about some of those later on in the class as well. But let's start by taking a step back and actually introducing some of these terms that