Little tech talk this morning, following the reveal of the 2014 version of Rockshox Vivid and Vivid Air.
This video explains that one of the main stake of ingeneers in product development is to limit at the outside friction between the pieces of the shocks. This is the main guarantee to get a better working of the suspension.
But the ingeneer @rockshox explains also that optimization can go through a study of the structure of each piece of the suspension. For example, treatment with some micro porous surfaces on some pieces can keep a film of oil that increase the efficiency of the suspension when it pumps.