Learn fundamentals, not frameworks

Frameworks have short lifespans (median 3.3 years, frontend as low as 0.32 years), while fundamental concepts like algorithms, design patterns, and distributed systems remain relevant for decades. With AI now generating 41% of code, understanding fundamentals becomes more critical for debugging, architectural decisions, and code review. The 80/20 rule suggests spending 80% of learning time on timeless fundamentals (data structures, clean code, system design) and only 20% on frameworks, which you'll learn on the job anyway. Developers who invest in fundamentals can quickly adapt to new technologies and become expert generalists who thrive in an AI-enhanced world.