legal have any system at all it just evolved in terms up the established room taxes start out by saying I don't know after certain amount of investigation you know enough so you can discuss the topic how do you know you've reached that point how do you know there isn't something huge missing areas you wouldn't know cell the things you don't know how you can examine in other words nobody fine honey years I'll examine the benefits and fly she they can't even envision they win they should find me flapping their wings like birds as their only referee and you see they have no other haven't they can't picture a jet engine if you ask him this time I'll you have anything you wanna here I think I'd like a twin-engine Beechcraft he can shade its outside his frame of reference so when you say what he do other things we don't know you don't know so you can't do anything about okay a successful meeting somebody yes them certain questions by the answers you can tell how long it takes to turn around what does this mean by turning them around which questions do you ask you have questions differ depending on the observation made may I ask different questions have different people to find out how attached AR are how in for much they were I culture they lead then I approach them on bases and I think they can understand within the realm and evaluation and gradually taken from system a this is to be in a system see 