Just because those young who voted does not mean that those young that did not vote, would vote the same.

I would assume that is not the case here, but its something to consider.

>> "In mid 2013 there were about 5.8m people between 18 and 24."

Which is what percentage of the voting population?

Mid 2013 there were 51.8m people aged between 18 and 89.

If we assume all of them can vote 5.8m is 11% of 51.8m.

Total votes on either side were roughly 16 vs 17.5 million.

This was the biggest problem with the referendum: apathy from the younger voters.

You're asuming that the ones that didn't vote would have the same distribution as those that did.

Instead, maybe they actually were apathic, and their votes would be roughly 50-50 - so Leave could still win.

I'm going by, admittedly lousy, polling which consistently shows young people prefered remain.