My guess is that a "profitable business model" in outer space will never be developed. This is why governments have to provide funding for space exploration -- if there were even a remote chance of financial success, a company like General Electric would have established a permanent presence on the moon already.
Agreed, unless the price of rocket fuel somehow drops by an order of magnitude or three. In the mean time the author is engaging in mental masturbation. BTW, has any of these deluded space dweebs ever actually done the math to show that the energy from their solar power stations can be transmitted to earth with anything like the necessary efficiency?