Right, and I think what you're missing is that its not luck that allowed airbnb to scale, but exactly the combination of ingredients that it had when it started

Right, and I think what you're missing is that its not luck that allowed airbnb to scale, but exactly the combination of ingredients that it had when it started and during its growth. This is not a government monopoly situation. All those users chose to use Airbnb over other options for a reason. Let's not forget or diminish that.