3 reasons that may have tipped balance against Remain: young people don't vote, bad weather (london)

[muriel_volestrangler]

6. It would have made little difference

Figures here: https://en.wikipedia.org/wiki/Results_of_the_United_Kingdom_European_Union_membership_referendum,_2016

London turnout 69.7%, compared to average 72.2%, so 2.5% lower. It voted roughly 60/40, so if there was a higher turnout, 1 in 5 votes would cut the Leave lead. So that's 0.5% of the London electorate, or 0.5*(2,263,51+1,513,232)/69.7=27,000, roughly. Compared with a Leave country-wide lead of 1.27 million, it's not significant. Even if London could have been a high turnout area, and the loss was twice as much, it's about 55,000 in 1,270,000.