The Distraction of Justice Kagan's Dissent

I don't recall reading a Supreme Court decision with such kind of expressed, almost personal animosity and making fun of the reasoning. I found that a dozen of dozens of pages of just like art history, recitation to be interesting and true but perhaps neither here nor there with respect to copyright law. And frankly, both decisions would have done the readers and society a favor by sort of tamping that down a little bit.