> The flipside of the libertarian "you have no right to dictate what I do" stance is that you may be generating external costs that your community has to absorb

> The flipside of the libertarian "you have no right to dictate what I do" stance is that you may be generating external costs that your community has to absorb, so the legal structure should make sure you bear your share of that cost in accordance with how much you contribute to creating that cost. This is a really well-crafted statement that applies widely to all kinds of issues in governance.