The  World  Bank  has  developed a comprehensive conceptual framework to capture the multifaceted nature of the modern financial system. The framework has four dimensions that reflect the essential characteristics of a good and well-functioning financial system 4  that is:  depth, access, efficiency and stability.
For centuries groups in our societies have railed against, and endeavored on occasion to  BIS Review 111/1997  destroy, new inventions. Fortunately for us the Luddites and their ilk failed, and recent generations have enjoyed the fruits of those technologies. Moreover such a slowdown may not even be possible -- at least without major disruption and cost.