Fig. 1: Diagram illustrating the self-reinforcing S-curve and technological tipping points.
From: Evidence of a cascading positive tipping point towards electric vehicles

a Visual representation of the diffusion curve interacting with the learning curve at different stages of adoption. b A visual representation of the system approaching a tipping point, moving from one state (high ICEV sales share) to another (low ICEV sales share). The ball-in-the-well representations (left) show the system losing resilience over time, from red, to purple, to blue, eventually tipping. The time series (right) shows the system approaching and just passing the tipping point. ICEV stands for Internal Combustion Engine Vehicle.