We know how much Barney loves challenges, and he is never tired of them, since he always accomplished them.
Well, he accomplished all of them besides one, the diapers and samosas’ one since he has been interrupted by something more important than that.
What it would be his last chapter of the playbook. And we have to thank the mother for that.
Little by little we are founding out that every character of the show met the mother before Ted.
It’s, in fact, the mother that let Barney understand what he really has to pursue in his life: Robin.
That’s when he started creating The Robin. Here all the steps of the play: