When I critique an animation I wonder if the animator understands what I mean when I say, "The spacing could be adjusted to depict more weight", or, "The timing could be adjusted to build more tension opr add more texture." I think many of the animators in my studio may think timing and spacing are the same thing. They often use the word "timing" where I would have used the word "spacing". Anyway, this is my attempt at explaining about timing and spacing.