Today’s round-up of need-to-know stories features a rare argument in favor of Google Glass, a lyrical take on the intelligence of worms and jellyfish, and a discovery that might help explain how galaxies work.

What will sports look like in the future? | ideas.ted.com

How will science and technology change athletics, the limits of the human body and the shape of competition? Writer David Epstein, NFL pro Chris Kluwe and ESPN’s Cynthia Bir tackle these questions and more.