Scottish scientist Professor David MacMillan won the Nobel Prize in chemistry for work which led to developments in drugs for Alzheimer’s disease and cancer.

After being added to the National Portrait Gallery, David talks to Martin and Laura about new-found fame, his friendship with Sir Alex Ferguson and why he’s 'not worried in the slightest' about AI.

Scotcast is the BBC’s Scottish news podcast, with Martin Geissler, Laura Miller and Natalie Higgins.

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