So the referendum was won for Leave by some tailored adverts on social media? There's a massive whole in that narrative; and that is a lot of working-class Leave voters, especially the older ones, are not on social media or have professions and lifestyles that allow them the luxury of looking at Twitter all day.
I was expecting it to be biased for Remain, but wasn't expecting it to be that biased. And the scene at the end with Cummings being interrogated (in the future) by a committee on why Brexit turned out to be a disaster, was cynical and disingenuous. Basically, this was Remainer revisionism and projected conjecture.