Part of the beauty of the London dining scene is that there is a plethora of choice. Like the citizens of this city, there is huge diversity. However, the darker side of the city’s culinary dynamism is that it is relentlessly Darwinian: if you don’t get it right, you will fail. The statistics bear this out: some 50% of central London restaurants shut within a year of opening. I fear Ikoyi may be one of them.