Indeed, the prefrontal and parietal cortices are the brain’s Louvre: vastly too much to take in on one visit, and no matter how niche your tastes you can find something to suit. The prelimbic region, to pick one of many, is like the ceramics gallery: if that’s your bag, great—you could spend all day in here marveling at how its neurons send spikes after a mistake is made, seemingly in order to ensure you take more time before making the same decision again;19 if it’s not your bag, glance at the serried ranks of plates as you hurry to the exit.

