Last night on How I Met Your Mother, Ted tried to show his future children how unrelated incidents could lead to an important event. From Barney's 200th conquest (gross but hilarious), to Robin having food poisoning and on to Marshall's addiction to graphs; everything has a purpose. These events led to Ted meeting Stella on the street. Now does this mean that Stella (remember she left Ted at the alter) is the mother? Or does this mean that Ted meeting Stella is going to lead him to the children's mother?