I honestly don't think the US could handle a doubling of flyers, we will have outgrown our current infrastructure yet it's almost impossible to expand it. Like

I honestly don't think the US could handle a doubling of flyers, we will have outgrown our current infrastructure yet it's almost impossible to expand it. Like it or not, the price of airline tickets is probably going in one direction for the foreseeable future. Most of the people coming out of poverty would not be in the US.