Barast always consider their work in terms of how it contributes to society, and any work which does not contribute sufficiently is stopped. This leads to a lack of knowledge in certain areas, such as astrophysics, as such pursuits are stopped once they ceased to produce meaningful improvements in ordinary life. This also leads to some over-specialization, as driving is considered a specialized contribution and how to do so is known only to public conveyors whose sole contribution is to taxi people from point to point or to drive public buses.