What scientific concept would improve everybody’s cognitive toolkit?

If you get depressed by the low quality of media [and politicians], spend some time at The Edge:

It’s ever more delectable that the Edge Foundation— the network of prominent scientists and intellectuals founded by literary agent John Brockman in New York — has worked against the reciprocal ignorance of literary cultures and sciences of each other. Successfully. If you take the algorithms developed by Larry Page and Sergey Brin, which measure the value of links, Edge’s website ranks seven on a global scale of ten. The New York Times ranks nine, eBay at eight. — Sueddeutche Zeitung