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The Forum, the BBC World Service programme which boldly crosses boundaries: scientific, creative and geographic, this week presented by Tim Marlow.

Meet The Guests

Global sociologist Manuel Castells argues that power is shifting from institutions to the realm of communications.

Mathematician and cosmologist John Barrow looks at the power of the image in science in his new book Cosmic Imagery.

Indian American legal scholar Madhavi Sunder discusses where power should lie in relation to the ownership of ideas. Download Madhavi's work.

Listen to the 60 Second Idea To Change The World

Each week one guest presents an idea to change the world. This week it's the turn of legal scholar Madhavi Sunder.

Listen to more 60 second ideas