Predictions of the development of Covid-19 in Australia have not held up to even short-term scrutiny. For example, the Health Minister Greg Hunt stated on Insiders on the March 15 that the government’s best estimate was that the coronavirus will reach its peak in Australia in a “six-month window” although it “might be longer”. It actually reached its peak on the April 4 in relation to ‘active’ cases, and even earlier, on the 28th March for ‘new infections’. 

On March 25, top epidemiologist Professor Tony Blakely stated that 60% of the population would become infected and 30,000 people would die, “if we are lucky”. At least the professor was talking about an...