While there’s satisfaction from getting an LED to blink five times in a row in response to a button press, it isn’t going to change the world — that is, unless you set your goals higher. It’s easy to lose track of the fact that electronics have changed human existence in only a few decades. Computers, TV, satellites, space exploration, drones, cell phones, robots, aviation, and modern automobiles are but a few examples. Against that backdrop, there’s a vast vacuum for experimentalists and engineers to fill. What I’m suggesting is that you take your knowledge of electronics — whatever your level of expertise — and focus it towards solving a meaningful problem.