Killer apps for old people, women in technology and the internet of stuff - watch our conversation with the UK's Digital Champion Martha Lane Fox.

Apart from being the UK's Digital Champion, Martha is the Founder and Chair of Go ON UK, Chair of the Government Digital Service's Advisory Board and sits on the Cabinet Office Efficiency and Reform Board. Martha co-founded lastminute.com in 1998 and sold the business to Sabre Holdings in 2005 - it is Europe's largest travel and leisure site.

Martha presented her ideas on digital technology and empowerment - ranging from 3D printing to the rise of a new kind of hybrid high street.

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