Everyone assumes that life has some sort of inexorable march towards sentience or star-faring intelligence. Maybe life is common in the universe, but star-traveling intelligence is rare. A unique set of circumstances "forced" intelligence in humans to evolve over a couple hundred thousand years. Yet the dinosaurs…

The creepiest moment for me was when the Governor was setting out his tools at the beginning of the episode, in preparation for Michonne, and he paused a moment to contemplate his use of the speculum.

Maybe it's because I never read the comics, but I disagree with some of Rob's points.

You call this a throwing arm? Why does it look to me like a head, grasping the cinder block with its jaw, and tossing it back over its shoulder?