Bob, Britt - and Ryan. Especially Ryan.
I think it goes back to Aesop (or one of the ancient Greeks), who wrote something like, "the fox knows many small things, but the hedgehog one big thing." something like that - you could google it.
Then Isaiah Berlin, seeking I think in part really to try to understand what the heck the aphorism meant, used it to classify writers, in particular to distinguish Tolstoi (hedgehog) from Dostoyevski (fox), in this really awesome essay.
The CBM ref seems like a nice pickup on the hedgehog, as does Flynn on the fox. MacKenzie has to top the classic rankings of foxes IMHO, just like Tom Doak really deserves it on the modern list.
But Ryan goodbye to all that and read dem buttkickin Russians!!!
Mark