Hello Steve, I was wondering how you calculate travel distances ? It’s related to some worldbuilding of my own, and I’m struggling to come up with a consistent method on how to calculate travel times, taking into account the travellers, technology (horses, no horses, by water, …), and terrain ? Is there an actual formula, or a rule of thumb ? I know this might be a bit like asking “what is logistics ?” asked in a few words, but still I find it lends fiction crucial verisimilitude.