This is the Rogers curve, from the well-worth-reading book “Diffusion of Innovations” by Everett Rogers:
This is also the Rogers curve:
Source: https://www.youtube.com/watch?v=fW8amMCVAJQ
Knowing where you and those you serve are situated on the Rogers curve is worth the introspection.
-P
(Thanks to several people for mentioning this video to me and to Rob White for linking me to it.)