Thanks to our 3‑month-old daugh­ter, my wife and I have been learn­ing much about baby brains. Most­ly learn­ing on the job, as you can imagine. We just watched a very nice PBS series titled Secret Life of the Brain that cov­ers brain devel­op­ment across the lifes­pan: babies, kids, teenagers, adults, seniors. A bit dat­ed (2002)…