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             ___      _  _      ___      ____    
    ___     / _ \\   | \| ||   / _ \\   |  _ \\  
   /   ||  / //\ \\  |  ' ||  | / \ ||  | |_| || 
  | [] || |  ___  || | .  ||  | \_/ ||  | .  //  
   \__ || |_||  |_|| |_|\_||   \___//   |_|\_\\  
    -|_|| `-`   `-`  `-` -`    `---`    `-` --`  
     `-`

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Text this: Optimal transport : old and new