Anyone know what time we're supposed to trigger Article 50 tomorrow?

[Monty92]

What is this 'true' majority of which you burble? There is a majority or there is not. And a vote on a given day is how we decide everything. Our votes are solemn and binding and we accept that whenever we walk into the voting booth. Political factions move mountains to get 'don't knows' to vote their way on any given day for precisely that reason. Whether they may change their minds subsequently is neither here nor there. Essentially, you are just trying to load the dice.
Also, in the context of this referendum, your argument presupposes that it was a level playing field. It was not. Remain had all the powers of the sitting PM and Chancellor, all the major parties, the Governor of the Bank of England, a £9m leafletting campaign, various acronyms and the President of the United States going into bat for it. In those circumstances, on could argue that a 52:48 vote for Leave in fact would have represented a vastly bigger margin in a more equal contest.

True majority opinion - an opinion that we know exists because the margin of victory was sufficient to discount arbitrary factors as having swung it. And probably big enough to take into account the capricious nature of 'don't knows', too.

Your other points are entirely valid. But I fail to see how you can argue against the suggestion that the larger the margin of victory, the more certain we can be that a true majority opinion exists.

That this does not make it a good idea as an electoral system, we can agree on.