Deep learning, a fascinating and complex subfield of machine learning, has revolutionized the way we think about AI. Using neural networks with multiple layers, or "deep" layers, these algorithms are able to learn from data in a way that was previously impossible. For instance, a deep learning model could be used to recognize objects in an image by analyzing the intricacies of each pixel through a recursive process of layering. This feat would be straight out of science fiction a mere couple of decades ago, yet it has become a reality thanks to the limitless potential of deep learning.