This is super important. In the first waves of the pandemic, England had a policy of contagion: go outside and get infected until you have herd immunity! It was absurd, an absolute folly, but they held that position long time.

Boris Johnson has learned his lesson; because he will have been warned by his experts of the seriousness of Omicron.

Conclusion: if a madman like Boris Johnson, who used to take Covid as a joke, is now taking it seriously, it is because something serious is going to happen, and we should be extremely cautious.