Voting Brexit is “like putting a bomb under the economy”, said David Cameron, ahead of the June 2016 referendum. “It means businesses closing, jobs being lost, hardworking people losing their livelihoods.”

Since then, such scaremongering has been exposed. The UK economy grew faster over the six months following the Brexit vote than during the six months before. Employment surged, as did foreign direct investment. Manufacturing boomed.

Ahead of the referendum, the Office for Budget Responsibility predicted UK growth of 2pc during 2016 as a whole – a forecast calculated on a Remain vote. The outcome, after Leave prevailed, was 1.9pc. The OBR’s pre-referendum estimate for 2017 growth was 2.2pc. On the latest numbers, we’re looking at about 1.8pc – not a million miles away, and there could yet be upward re-estimates.

Influential observers now admit they were too gloomy about the prospects for Brexit Britain. “I wouldn’t have thought the UK economy would be as robust as it currently seems,” said former Treasury minister Lord O’Neill last week. “It’s fair to say I got it wrong, and a lot of people now accept they got it wrong,” added Stephen Stone, chief executive of Crest Nicholson, among the UK’s largest housebuilders. “The economy is proving to be reasonably robust.”