> Meh, not really, the computer doesn't understand the images it's mixing,
That's 100% wrong. It does create abstract representations and it can imagine back. For example, there is this neural net that can do "woman + glasses = woman wearing glasses" on images, without any tags. It can combine concepts and generate new images. There is also another one that can "dream" images of bedrooms. It can even interpolate 10 intermediary bedrooms between any two images, and they look very good.