"What information has become available since the debate to make anyone change their mind anyway?"

Keith, I can't be arsed to type out the salient points of the flow of information that fuels the Brexit debate; if you don't know what this information on the consequences of Brexit that weren't discussed in there run up to the vote then there's little point in discussing it anyway. The media goes over this information in detail everyday.

We are allowed to change our minds; in science it's imperative you question everything and see you might have been wrong in the light of new data, admit it in front of your peers and change your mind; people should try it sometime as it's liberating not to be tied to an ideology or dogma.