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  • On a curved road, the in-course (A) can move ahead faster than the out-course (B).
  • So we tend to think of this as “the fastest course.”
  • But this only means that A is better than B under the constraints of “course.”
  • If we remove the constraints, straight forward C is the fastest and by far the fastest
  • Compared to C, the difference between A and B is nothing.


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