This is a linkpost for http://blogs.spectator.co.uk/2017/01/dominic-cummings-brexit-referendum-won/
It seems like Brexit was basically a small group of rationalists hijacking history. Remain was overwhelmingly likely without the competence of the leave campaign. Pretty impressive.
Of course I'm sure there's another side to this story, so take it with a pinch of salt.
Maybe Leave won regardless of or even despite my ideas. Maybe I’m fooling myself like Cameron. Some of my arguments below have as good an empirical support as is possible in politics (i.e. not very good objectively) but most of them do not even have that. Also, it is clear that almost nobody agrees with me about some of my general ideas. It is more likely that I am wrong than 99% of people who work in this field professionally.
He himself warns not to be construed as too influential. In this case the Scott's caveat apply: elections that are won by slim margin don't say much of significance.