> "What does 52 to 48 mean? It means UNDECIDED"

> No. It means 2% more people wanted Brexit.

In traditional arithmetic, 52 is 4 more than 48, not 2 more.

In traditional polling terminology, this was a 2% shift

Yes, its a 2% shift, but 4% more people wanted to leave. than stay.

Nope. There's a difference of 4 percentage points, but that does not mean that 4% more people wanted to leave.