From simplicity to complexity
A hundred years ago, inventors were often individuals working alone. Emerging technologies were simple enough to fit into one person's head, and it was often possible for a sole individual to bring a entire new, groundbreaking product to market singlehandedly. Think of the lightbulb, penecillin, the first airplane, dynamite and if you go back far enough, the wheel. Although many inventors had partners or assistants, it was simple enough for one person to do. Think about how simple a lightbulb is compared to, let's say, a Boeing 787.