I used to be a huge fan of Charlie Stross. He's made exactly this kind of apocalyptic prediction many times before. When devastation doesn't materialize, or the outcome far less severe than he predicted, he doesn't update on his beliefs or say "huh, guess I was wrong about that"; instead, he moves right on to the next one.

One of his favorite subjects is Brexit. I'm not a fan either, but here's his track record:

2016: When the Brexit vote happened, he predicted imminent Scottish independence, a failure of the Northern Ireland peace, and the collapse of the London financial sector (note the "fascism is here!" Cabaret reference): https://www.antipope.org/charlie/blog-static/2016/06/tomorro...

2018: he's stockpiling food and medicine to prepare for the immediate consequences of Brexit's implementation: "Current warnings are that a no-deal Brexit would see trade at the port of Dover collapse on day one, cutting the UK off from the continent; supermarkets in Scotland will run out of food within a couple of days, and hospitals will run out of medicines within a couple of weeks. After two weeks we'd be running out of fuel as well... After week 1 I expect the UK to revert its state during the worst of the 1970s. I just about remember the Three Day Week, rolling power blackouts, and more clearly, the mass redundancies of 1979, when unemployment tripled in roughly 6 months. Yes, it's going to get that bad. But then the situation will continue to deteriorate. With roughly 20% of the retail sector shut down (Amazon) and probably another 50% of the retail sector suffering severe supply chain difficulties (shop buyers having difficulty sourcing imported products that are held up in the queues) food availability will rapidly become patchy. Local crops, with no prospect of reaching EU markets, will be left to rot in the fields as the agricultural sector collapses." https://www.antipope.org/charlie/blog-static/2018/07/that-si...

2020: impending crisis, widespread shortages, deployment of the military, "added economic crisis, probable civil disobedience and unrest, a risk of the NHS collapsing, a possible run on Sterling, and then a constitutional crisis as one or more parts of the United Kingdom gear up for a secession campaign." https://www.antipope.org/charlie/blog-static/2020/12/so-you-...

2021: yet more disaster predictions, including that Boris Johnson might declare war on France: https://www.antipope.org/charlie/blog-static/2021/11/an-upda...

In 2022 he once again predicted a general strike, a failed harvest, and the collapse of the UK system of government: https://www.antipope.org/charlie/blog-static/2022/08/the-gat...

And then... none of this happened. Brexit hasn't exactly been positive for the UK, but neither has it rendered it into Fallout: London.