Swift is a very open system, and while it is technically an objective model, task resolution can be very subjective. Handling this requires a Game Moderator (GM) with a solid grasp of the game she wants to run, and a great deal of confidence. It is recommended only for very experienced Roleplayers with hundreds of hours of role-assumption experience ... or kids.
Kids get this game in no time.
This game can be played either with dice or diceless.