The Treasury report you quoted didn't make that claim. If it made the £900million claim (which it didn't, this seems to be a figure you've made up yourself) its claim would have been:-
At some point in the future our GDP will rise by £900 million more if we stay in the EU than if we left.
Which is true because by 2030, according to the treasury report the difference will be more like £2.3 billion a week on the basis of the 6% gap in GDP if we leave compared to staying. But then I never claimed that the £900 million a week came from that report. I was very clear in my earlier post as to its origin, which was taking a middle case scenario of short range hit on GDP and extrapolating to a weekly reduction in GDP if we leave compared to staying.
Links please, all you have given me is a link to a report which cites those reports.
Details of every one of the report is clearly indicated in the footnotes in the Treasury - you can simply google the title to find the report.
If we vote to leave then there will be no uncertainty. What will be uncertain is if we vote to remain by a small margin because we'll need another vote in a few years.
Oh you are a comedian - there will be massive uncertainty, starting with who will actually be in charge of any negotiation. And don't forget that if you take Farage, Johnson, Gove and Redwood as leading Brexiters they totally and utterly disagree with each other on their preferred post Brexit settlement with the EU - they range from complete isolation from the single market through to being in EFTA/EEA.
And given that any deal will need ratification by 28 countries the levels of uncertainty are endless.
If we remain we know exactly what will happen on June 24th - we will carry on as normal.