6. The system according to claim 2 , wherein the student state data includes biometric data derived from monitoring the student with one or more input devices, and wherein the rules include one or more rules that initiate actions responsive to a data condition wherein the biometric data indicates circumstances for a break, circumstances indicating that the student is not being presented with adequately difficult objectives, or circumstances that the student is being presented with objectives that are too difficult, and said actions include starting a learning object offering the student a break, or starting learning objects that increase or reduce the difficulty of the training; and wherein the biometric data is provided by an eye tracker, a microphone, a respiration sensor, sensors capable of detecting posture of the student, or one or more brain sensors.
2. The system according to claim 1 , wherein some of the learning objects each comprise respective training output data configured so as to provide a respective training output video displayed to the student at the training station on a display device or training output audio played to the student at the simulation station by a sound output device; and wherein the data storage device or devices store student state data including data indicative of learning objects that have been output to the student, said data being updated on completion of output of the respective learning object; and wherein the rule data defines at least one of said rules with a data condition that the data indicates that the training output data of a first prerequisite of said learning objects has been output to the student, and an action that causes the training station to provide the training output data of a second advanced learning object to the student; and wherein the data condition of the predetermined level is a data flag value that is set to one of two values before output and another of the two values after output is completed.