I'd like to see some people perform their own exercises with case numbers data. Because we have seen a doubling time estimate of a week mentioned in the press. So its not hard to pick a number of current daily infections, for example from the weekly ONS survey or from Zoe covid, and then double that number for every week that we dont take action. See what sort of number you end up with after 4 or 6 weeks.
Of course it isnt quite that simple because of various new regional measures, and the doubling time could increase or decrease over time, and the current estimate for it might be wrong (they certainly got it wrong in early March) but it might still be able to give people some feel for the situation and a practical refresher on exponential growth.