Stan Clough
Images in the background of the three-dimensional pictures that you see on two-dimensional screens, in your eyes, on mobile phones and in mirrors, are older than your image of your nose by their distance in front of your nose. The youngest image that you see is your image of your nose. When you walk across a room to sit in a chair your picture of the chair is at first several metres older than your image of your nose but as you approach the chair the age difference between your images of chair and nose diminishes until it vanishes when you reach the chair and sit down in it. It is logical therefore to use the same unit, metre, for differences of distance and age in everything you see. That requires the removal of the concept of time and that, in turn, requires the removal of concepts of speed and the present. Time is replaced by distance, second of time by light-second and the present by the past. A light-second is a distance equal to three hundred million metres. The phrase, one metre per second, becomes one metre per light-second and since metre and light-second are distances it is a ratio or fraction, one over three hundred million, not a speed. Traffic cameras measure fractions and then someone converts them, illogically, confusingly and unnecessarily, into speeds. A traffic camera measures the number, N, of metres a vehicle travelled while a clock counted one light second. It therefore measures the fraction N/c where c is three hundred million. Without the concepts of time, speed and the present it is not possible to make theories. The logical reform of language simplifies science by wiping all scientific theories from the record.