(A) Who could create a house for $300 and if it was possible, why hadn’t it been done before?

(B) When Vijay Govindarajan and Christian Sarkar wrote a blog entry on Harvard Business Review in August 2010 mooting the idea of a ‘$300-house for poor’, they were merely expressing a suggestion.

(C) Nonetheless, they closed their blog with a challenge: ‘We ask chief executive, governments, NGOs, foundations: Are there any takers?’

(D) ‘Of course, the idea we present here is an experiment, ‘wrote Prof. Govindarajan and Christian Sarkar, – an almost apologetic disclaimer for having such a ‘far-out’ idea.