[blackbear_]

> what do you mean by "incestuous"?

To give you an example, about half of my group at University X did a Bachelor's in statistics at University X, then a Mater's in statistics at University X, then a PhD in statistics at University X, and some are even doing a PostDoc (in statistics at University X)!

[xdavidliu]

but that's not what the original comment mentioning "incestuous" was talking about. The original was talking about academic trees, for which "incestuous" would indicate a tree with loops (i.e. multiple paths between two points)