Before revision: So while in a conventional game the announcement that one's character is going to leap over a seven-meters-wide canyon will be greeted with the request to roll a number of dice, a player in a storytelling game who wishes to have a character perform a si,milar feat will have to convince the others (especially the storyteller) why it is both probable and keeping within the established traits of their character to successfully do so.
After revision: So while in a conventional game the announcement that one's character is going to leap over a seven-meters-wide canyon will be greeted with the request to roll a number of dice, a player in a storytelling game who wishes to have a character perform a similar feat will have to convince the others (especially the storyteller) why it is both probable and keeping within the established traits of their character to successfully do so.