There's fierce competition for the biggest lesson of the 2008 banking crisis: the folly of trusting rating agencies or critical global benchmarks? The need for banks to operate with massively enhanced levels of capital and liquidity? Or the inherently corrupting conflict of allowing short-term results to dictate windfall bonuses for executives? Take your pick; but with many of those lessons having barely been absorbed by regulators and industry alike, it might not be surprising that this list of forecasts appears excessively pessimistic. I hope history proves me wrong.

Superficially, the City will appear to bear only light scars from Brexit, with fewer than 15,000 jobs directly shifting from UK financial services to EU locations.