Historical signals are very instructive, a premise that makes me a big believer in learning from the lessons of history. There are several historical signals that help us understand the drivers of prior transformative periods. The first is a period of great invention. The cumulative effect of invention and knowledge gain has led us to our current modern society. However, it was the early days of the industrial revolution that represent the greatest period of invention. The second signal is convergence. When human action converges with invention, societies transform. A third and critical signal is related to the second, where catalysts throughout history have driven convergence.