Soybeans are often referred to as "magical" due to their versatility in food production, particularly in creating soy milk. The process of making soy milk involves soaking, grinding, and boiling soybeans with water, which extracts the proteins and fats, resulting in a creamy liquid. This versatility is attributed to the complete amino acid profile of soy, containing most of the essential amino acids needed for human health. While other foods like potatoes could theoretically be processed into a milk-like substance, they are typically categorized differently, such as soups. The discussion highlights the popularity of soy and almond milks among those who are lactose intolerant, emphasizing the need for alternatives in dairy consumption.