Explore the landscape of machine learning through case studies, examining what tasks are considered easy, medium, and hard in this rapidly advancing field. Gain insights into facial recognition, image classification, and surveillance applications. Delve into more complex areas like image captioning, imitation learning, and robotics. Consider the future implications of machine learning, potential challenges, and ethical concerns. Discover how this technology is reshaping scientific and industrial possibilities while understanding its limitations and potential pitfalls.