No Safety margin makes it much more unlikely for the same person to make sacrifices for the future as well. There are variations of the 'marshmallow test' in wh

No Safety margin makes it much more unlikely for the same person to make sacrifices for the future as well. There are variations of the 'marshmallow test' in which the person introducing the test lies to the child before presenting them with the choice of delaying gratification. The number of children holding out for a second marshmallow in those instances drops noticeably, and it's not hard to imagine why. Delaying gratification presupposes that the future is somewhat predictable.