Tim Marshall was Diplomatic Editor and foreign correspondent for Sky News but after three decades he chose to step away to focus on analysis and writing of what he had witnessed and learn in his career. He is the author of the huge international bestseller Prisoners of Geography. In this episode he talks to Peter about what shape a new Cold War could take, why some cultural reforms can lead to unexpected challenges and about how to use the current landscape a projection of potential events across the next 10 years.

@Itwitius is Tim's handle on Twitter and his website were you can listen to his own podcast is www.thewhatandthewhy.com

If you're enjoying I've Been Thinking then don't forget Peter's books such as The Silk Roads are available now.

Produced, edited and mixed by @producerneil