Yet it remains, for the most part, a blank slate.

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This is the final post in a 3-part interview with Steve Blank.

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This concept is very much part of the lean startup culture developed by Steve Blank and championed by Eric Ries.

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Blank got to Silicon Valley in 1978 via ESL, now a part of Northrop Grumman, which did defense electronics work.

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Mr Alexander, who was a spokesman for the now defunct Britain in Europe lobby group before becoming an MP in 2005, rejects the "blank cheque" argument, saying the pre-manifesto document is merely part of the normal process the party goes through every time it produces a manifesto.

BBC: Manifesto Man: Danny Alexander

Or kids can be taken off parents' hands by capable babysitters, to frolic in the 15-meter pool or take part in nature walks, play board games or draw in a leather-bound blank book provided by the lodge, with complimentary crayons.

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