My dad always used to tell me something when we first started running together: “Don’t judge someone for how quick they’re going; you don’t know how far they’ve run.” He was always keen to make sure I had an idea of perspective; you can never tell just how hard someone is fighting based on your perception. You can never know someone’s full journey based on where they are now. You need perspective. You need to understand that this might be the 20th mile they’ve run, so of course they’re moving more slowly than you would having only ran the last 200m. You need to understand that they could be recovering from an injury, or that today is their recovery run. You especially need to realise that just because you