Matt Weinzierl, Professor of Business Administration at Harvard Business School, answers thought-provoking questions about the emerging space economy: centralized model, decentralized model? Public sector, private sector? Listen to episode

"It seems increasingly feasible to build things in space from resources in space that will be useful in space... So for instance, resource mining – going up and pulling things out of asteroids for use in space – is not a very good business model if there's nobody in space to use them. Similarly, having a gas station in space doesn't make any sense if nobody can provide you with the fuel from the asteroids to refuel people in space."