Tim Harford asks:
When will the 7-day average of new COVID-19 cases in the UK next fall below 15,000?
Despite having one of the highest vaccination rates in the world, the UK began facing a new surge in COVID-19 cases in late June 2021 (NPR, CNBC). The outcome will be determined using 7-day average data as reported by the UK government under "Cases by date reported" (Coronavirus.data.co.uk). If the question is still open as of 17 December 2021, data available for resolution will be evaluated on 24 December 2021.