When I met Instagram's CTO Mike Krieger

 Olly Mann and Mike Krieger at Instagram HQ, September 2015

Olly Mann and Mike Krieger at Instagram HQ, September 2015

It's Instagram's fifth birthday, and to celebrate The Guardian despatched me to California to meet Mike Krieger, its co-founder. Our 30 minute chat is available to download HERE. For a dotcom billionaire, he's incredibly modest, and full of sage advice, e.g. "You should be able to explain your startup to a stranger at a bar" and "People who live in Silicon Valley are living in a future that is never going to happen".  Too true!