Text this: Invariance explains multiplicative and exponential skedactic functions

 ______      ___      _  _      ___      ____    
|      \\   / _ \\   | \| ||   / _ \\   |  _ \\  
|  --  //  / //\ \\  |  ' ||  | / \ ||  | |_| || 
|  --  \\ |  ___  || | .  ||  | \_/ ||  | .  //  
|______// |_||  |_|| |_|\_||   \___//   |_|\_\\  
`------`  `-`   `-`  `-` -`    `---`    `-` --`