The 2017 Edge Annual Question: Which Scientific Term or Concept Ought To Be More Widely Known?

My first thought when I heard the 2017 Edge Annual Question was �Wasn�t that last year's question?� It wasn�t. But it�s almost identical to the 2011 question, �What scientific concept would improve everybody�s cognitive toolkit.� That�s ok, I guess, the internet has an estimated memory of 2 days, so after 5 years it�s reasonable to assume nobody will remember their improved toolkit.

After that