Appendix to Session 3 "The Diffusion of Innovations"

FYI, I pasted the curve of the old model, "the diffusion of innovations", I mentioned last time and the link to wikipedia below. While the model was first published in 1962 by Everett Rogers with regard to agricultural technology, it has already been adapted to its modern version to help us gain an in sight of how innovations permeate the society from "geeks" to "grannies".

Personally speaking, I am very fond of the theory like this that can lead us to think more about micro-mechanisms("capillaries rather than arteries") of how technologies affect our life day after day. Even a tremendous revolution cannot change people's ways of thinking and acting in a sudden. Neither will a burst of new technologies manage it. Hope to learn more about how those changes take place step by step since it will fuel my confidence in making a difference to the world we live in small ways that I can afford.
https://en.wikipedia.org/wiki/Diffusion_of_innovations#History