Their bistro boxes are okay, and a lot healthier than most other fast food lunchy things. But no, they're not great at food.

Academic work is incremental. It's often not clear what the utility value of a particular small discovery is — you have to give it 100 years and see what builds on this knowledge. Most of the things we discover couldn't be discovered without some prior discoveries, many of which seemed a bit pointless at the time.

No, we don't understand every single teenager, of course, but having been teenagers, having been around lots of other teenagers, having many years of adult reflection on those experiences, and having — in many of our cases — worked with teenagers or lived with them, we do understand more about how most teenagers work…