An example of VC dimension
Suppose our model class is a hyperplane.
In 2-D, we can find a plane (i.e. a line) to deal with any
labeling of three points. A 2-D hyperplane shatters 3 points
But we cannot deal with some of the possible labelings of four
points. A 2-D hyperplane (i.e. a line) does not shatter 4 points.