I made an illustrative model of the theory:
The product begins somewhere along the demographic circle. The Market Friction Effect (where the lighter color means less friction, and darker means more) actually exists on the entire demographic circle; it was simpler to only illustrated it on one part. As the product approaches the Full Saturation Point, its inertia becomes harder and harder to maintain as it slows down. Movement to the side (expanding demographic appeal) becomes more difficult as you go further in too. The full saturation point acts as a sort of gravity well; you cannot, strictly speaking, retreat backwards from it; you can expand by going sideways, but you will always be approaching the full market saturation point even when you do that.
Sky Render - Sanity is for the weak.
