<div style="margin: 0in 0in 0pt">Thank you for your comment and being more specific about what I have written that you do not agree with. The reason lift and drag are infinite in direction is that the relative airflow that they are determined by is infinite in direction. Only in certain circumstances is lift perpendicular to the direction of the object in motion but in every circumstance lift is perpendicular to the relative airflow that caused it. An example would be objects in wind tunnels that generate lift and drag on objects that are not in motion.If the definition of lift were determined by its direction in relation to the motion of objects, objects in wind tunnels would not generate lift because they are not in motion. As far as determining aerodynamic force is concerned the only motion that is relevant is the motion between the air and the solid object or relative airflow.Another example would be a sail boat, aerodynamic force is determined by a combination of the direction of the motion of the sail and the direction of the wind just like a sailplane that flies in to a strong updraft.</div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt">You are so right lift is not created in front of the leading edge of a wing or in front of a golf ball this is why I specifically said aerodynamic force is inflected on solid objects and not in close proximity to solid objects. </div><div style="margin: 0in 0in 0pt"></div>