> makes it supremely difficult to host services without a very cooperative ISP Sadly, that's a feature, not a bug. Two layers of NAT sucks, but I guess it cou

> makes it supremely difficult to host services without a very cooperative ISP Sadly, that's a feature, not a bug. Two layers of NAT sucks, but I guess it could have been avoided if a designed (instead of ad-hoc) solution to the problem was devised. > And there are more internet subscribers in the world than there are IP’s for them Is this really true, did somebody actually run the business math? "Internet subscriber" roughly corresponds to "household", not to "person".