If there's no incentive to make it profitable, there would be no critical mass to move the technology and industry forward. There's only so much public money th

If there's no incentive to make it profitable, there would be no critical mass to move the technology and industry forward. There's only so much public money that can be spent and it's fairly obvious that it won't be spent efficiently. The space shuttle: $500bn, ISS: $100bn., is humanity closer to colonizing space for that money? Governments have an incentive to spend money, not to be frugal and industrious.