Life in a cashless society

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Author David Wolman says cash is dirty, expensive and should just be pushed off the cliff.

He describes his new book, "The End of Money: Counterfeiters, Preachers, Techies, Dreamers- And The Coming Cashless Society," as a eulogy to these rectangular slips of paper and little metal disks.

But while writing the book, and going without cash for a year, Wolman found that the future of money is about much more than just dollars and cents.

Produced for the BBC by Leigh Paterson.

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