![Interpolation vs extrapolation: the convex hull of multivariate data](https://blogs.sas.com/content/iml/files/2019/03/convexhull4-640x336.png)
Statisticians often emphasize the dangers of extrapolating from a univariate regression model. A common exercise in introductory statistics is to ask students to compute a model of population growth and predict the population far in the future. The students learn that extrapolating from a model can result in a nonsensical