Today's bucket of cold water: not so much in the detail, but the feel of what's happening and the arc of events, this feels a bit like the (Scottish) indyref. Seemingly natural remain majority which eroded over time; the remain campaign was dreadful; indie campaign was energising and optimistic; young voters get involved; ultimately a single poll (iirc) shows indie majority (we haven't yet had a Labour lead, but it wouldn't surprise me if some dodgy poll or other shows one in the next couple of days). Result: 10 point gap. Sorry.
p.s. if you have any other dreams, personal, political or professional, I'm happy to bring out the wet blanket of doom. In fact its my superpower.