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What if?
28 March 2013 Last updated at 11:17

Your visions of the future The finalists from around the world in our "What if you had a vision of the future?" competition A kid looking through the window

What if women ruled the world? The world' most powerful women want change Dee Dee Myers outside the White House

What if everyone had a car? Can we solve global gridlock? Graphic drawing of a car Watch

What if you could mine the Moon? This century's space race takes shape Buzz Aldrin with the lunar landing module in 1969

Testosterone and ageing Can injections help men get a 'younger' body? Dr Life lifting weights

A history of the future How past visionaries imagined the future Geoffrey Hoyle's jumpsuit, HG Wells' time machine, the cog-eyed droog

The impact of 'big data' How data deluges are changing our lives Times Square, New York, composite image

Is sitting killing us? We test the treadmill desk. A man's feet on a treadmill

Robot warriors Will robots replace soldiers on future battlefields? X-47B pilotless robot aircraft

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About What If?

This year the BBC is looking into the future in key areas of science, politics, education and our personal life and delivering their findings online, on TV and on Radio.