The discussion highlights six main sub-disciplines within electrical engineering: control, communications, power, electronics, computer engineering, and electromagnetics, each with distinct applications and industry needs. Control engineering involves managing systems, exemplified by technologies like "fly by wire" in fighter jets, while electromagnetics primarily focuses on antenna design. There is an anticipated shortage of power engineers, suggesting strong future demand in that area. Control and communications are noted as the most math-heavy sub-disciplines, whereas electromagnetics is the most physics-intensive. Job prospects vary significantly across these fields, influenced by industry cycles, with a broad undergraduate degree providing flexibility for specialization later on.