Why can't AI generate hands properly (yet)?

Have you ever been fooled by a fake image generated by an artificial intelligence software like Midjourney or Dall-E? There is often a simple giveaway: the hands. In AI-generated images, the fingers are often too numerous or bent in an unusual way. These fake images also often include other anatomical aberrations or incoherent texts. All these clues can help us detect deception.
But can these current technical shortcomings save us from misinformation? And how should we address the questions and concerns raised by these new tools? To answer this, we need to understand how these software programs function. In this video, Le Monde takes you into the world of generative AI.