This not only answers one of the main criticisms of the game (often voiced by fellow Forbes contribute Erik Cain) but also creates new ways to play the game and expands the variety of puzzles and challenges in the game.

FORBES: Skylanders Swap Force Gets the Jump on the Competition

Reading, going to work and navigating a busy life may be enough to maintain brain health, but lifting performance takes massive amounts of practice--learning a new language, taking regular music lessons, doing complex jigsaw puzzles--to produce enough chemicals to make synapses stronger.

FORBES: Innovation

Puzzles will confound you at every turn as you learn new skills and explore new areas.

FORBES: 'Hero-U: Rogue To Redemption' Approaches The Kickstarter Finish Line (Update: Success!)

Promoting this kind of innovation, where companies start to look more like puzzles than pyramids, has to become part of feminism's new agenda.

WSJ: Ignore Sheryl Sandberg: How to Get More Working Women to the Top

New techniques, such as the use of digital photography, help compare variations and solve puzzles.

ECONOMIST: Muslims and the Koran

Mr Sandel brings abstruse-sounding ethical puzzles down to earth with vivid examples taken from the news: price gouging in New Orleans after Hurricane Katrina, affirmative-action programmes at American universities, large bank bonuses paid with public money.

ECONOMIST: First principles of justice: Rights and wrongs | The