Or any number of other potentially unknown factors resulting from the completely unprescendented disruption to normal life that has been going on across the wor

Or any number of other potentially unknown factors resulting from the completely unprescendented disruption to normal life that has been going on across the world for a number of months. Anybody claiming to know specifically what to expect from something that has never happened before should be treated with a healthy dose of skepticism. Especially if their only way of taking measurements is so imprecise and inconsistently applied.