Freeman Dyson suggested a focus on colonizing the asteroid belt. The main advantage is 1. Purpose (mining) 2. Low-gravity makes it easy to leave. The main barri

Freeman Dyson suggested a focus on colonizing the asteroid belt. The main advantage is 1. Purpose (mining) 2. Low-gravity makes it easy to leave. The main barrier, in his opinion, was the genetic engineering of warm blooded plants. For what it's worth, I think we will have cities of 10,000 on the moon because it's only 1 day travel and offers great recreational activities (moonball, moonbiking, etc). Televised sports offers a scalable business model.