What core question? This one?
which has been answerethree times
Read the thread
Not adequately. No one has yet explained why certain light curves, bends, goes in a different direction, etc. but other light does not
which has been answerethree times
All light in the entire universe travels in a curve
You just seem to have ignored this answer every time. Light travels in a curve, not some light, all light. Not just light reflected off something all light, not just light near the flat plain all light. Somtimes, the curve is falt, and would be decribed as stright, but there is no cross over of path . There is no special light that travel differently to any light it is close too, there is only one direct light path from any point to any other point, just that it is not garenteed to be a straight line)Read the thread