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a situation when the student has more outstanding elements to review than they can handle. Few users can sustain more than 200 item repetitions per day (let alone thousands of topic in a heavily overloaded incremental reading process). When the Outstanding parameter (in the Statistics window) starts going above that number, overload is likely. Overload can best be handled with Auto-postpone. However, one-time big loads can be resolved efficiently with Postpone (delaying all elements) or Mercy (spreading all review in time)