If there’s one thing we can thank the coronavirus pandemic for, it’s a math lesson. Watching an infection lead to two, then four, then eight, then 16, then 32, then 64, then 128 and so on, people ...

How far and how fast will the Covid-19 pandemic spread? That question is on everyone’s mind, and it’s something most of us don’t have a good intuition for. The problem is that our human brains tend to ...