"... Something tells me that this visual shouldn't require additional explanation. :-) ..." The graph looks screwy. None of this curvy point to point business

"... Something tells me that this visual shouldn't require additional explanation. :-) ..." The graph looks screwy. None of this curvy point to point business. It would look more like a spike followed by a - a) a plateau if you can't scale - b) a dip when users exercise the back button - b) an upward curve if your site changes with user demands