Terbius is concentrating on economics, and there's more to the economy than the predictions of city institutions. Brexit has already proved a real issue in science as scientists in the UK find themselves left off grant applications for EU funding and therefor out of very important collaborations. Science is truly international, and the integration of UK science with our EU partners had become seamless and very productive, driving the sort of innovation the UK will need to stay competitive in the global marketplace.

My own university is already trying to mitigate the effects of Brexit on it's research groups, but many long-term projects are already off the table as including UK scientists will mean their grant applications could well fail because of long-term uncertainty regarding how collaboration will work.