Also:

> I was under the impression, from reading his essays, that Paul was against single founders because they might give up too easily, so a founder who sticks to his idea would be desirable.

My understanding of Paul's argument has been that most initial ideas are bad and that a successful startup requires changing course until your idea matches a marketable need. This suggests an important distinction between stubbornness - refusing to change direction - and persistence - refusing to give up.

Caveat: I don't know the author and have no idea whether he is stubborn, persistent, or anything else.