OP here. The point is to illustrate with a graphic rather than English. It's already explicit that it's a computational model. I can still edit it to emphasize

OP here. The point is to illustrate with a graphic rather than English. It's already explicit that it's a computational model. I can still edit it to emphasize that more, and did. A visual graph is the clearest way to show that correlation usually doesn't hold as a threshold is raised. Much clearer than equations or handwave-y English.