Mike Lynch was often lauded as Britain's answer to Bill Gates. Born into a working-class family, Lynch's incredible intellect and passion for computers led him to become a billionaire tech entrepreneur. But behind the scenes, Lynch was a bully who couldn't bear criticism and was prone to creative accounting. When computer giant Hewlett Packard bought his company, Autonomy, it triggered one of the biggest fraud scandals in Silicon Valley history. Tim talks to Katie Prescott, Technology Business Editor at The Times and author of the book The Curious Case of Mike Lynch, about the lessons we can take from a story no one could have predicted.

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Dick and Mac are content with their lives: they enjoy making burgers by day and stargazing by night. Ray Kroc is a workaholic chasing success at any cost. When the brothers' relaxed approach to business collides with Kroc's ruthless ambition it will birth one of the world's best-known brands. This is the story of two very different approaches to making hamburgers - and two very different approaches to making money.

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Tim is running the London Marathon on the 26th of April. To give him a week off to finish training, we're playing this running-themed classic from the archives. If you would like to donate to Teenage Cancer Trust, Tim's fundraising page is at tinyurl.com/HarfordMarathon - any support is very much appreciated.

Until the 1960s, it was deemed too "dangerous" for women athletes to run distances longer than 200m - and a marathon would kill them, or leave them unable to have children. Rubbish, of course. But when Kathrine Switzer signed up for the 1967 Boston Marathon, it wasn't the distance that bothered her - it was the enraged race director trying to assault her.

Thanks to pioneers like Kathrine, women have made huge strides in long distance running - and are now challenging the times of men in the very races they were banned from for so very long.

See the show notes at timharford.com

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