I like that they started with comparison to other animals, with humans being born "sooner" in the development cycle due to our larger brains.

To me, this sets up a nice mental model for the first ~18 months of parenting: your child is still developing the extreme basics, in particular its brain, which is forming pathways based on your actions. So set to work forming those pathways with lots of talking, face time, and letting your child observe the world. After all, it came out to get an "early" start!