Second, the individual may not be aware that he has valuable information, and when he becomes aware, it is only useful for a limited time, too short for it to be communicated to the central or local planners.
其次，个体或许没有觉察到有有价值的信息，而且在觉察到的时候，只在有用的时间里面有用，时间太短以至于无法给中央或当地的计划者交流。