With three trips remaining on this project, I’m anxious to hit the road. The weather, however, is playing up – one minute the sun’s out, the next the clouds conspire to steal the light. My destination today – Tinto Hill – involves a day trip, but one I’m almost tempted to invent rather than venture 50 miles south east of the city. Does my physical presence matter, I ask myself, or could I simply make a virtual journey, pieced…