> "Present" is sort of more a human concept than a physics one. Please excuse my quibble, but more precisely it is a classical/Newtonian concept rather than a

> "Present" is sort of more a human concept than a physics one. Please excuse my quibble, but more precisely it is a classical/Newtonian concept rather than a relativistic concept. "Human concept" might map to "folk physics" (the version of physics assumed by "the common man" humans from current hunter-gatherer societies and older societies etc.) There are illustrations from the middle ages and from ancient Greece, if I'm not mistaken, that show the flight of an arrow to be a straight line up to apex, and then linearly down to target (rather than a realistic parabola) -- and although I've always wondered if an actual bow expert thought that's how it worked (unlikely), but apparently the non-archer philosophers of the day apparently did. But I digress. You are clearly just pointing out the modern understanding.