A couple of people have asked me lately if they should be worried about the novel Wuhan coronavirus. Which got me to thinking. Much of what we sciencey types chat about online can quickly get – or just start off as – too technical for the general public. And sometimes that may leave them with a sense that things are more worrying than we think they are. One thing that concerns folks, is how fast this emerging virus is spreading. So I put down a few thoughts which I hope are broadly understandable. If not – ask questions below.