title: Why does cache use Most Recently Used (MRU) algorithm as evict policy?
body: <p>I know the algorithms of MRU and its reversed one Least Recently Used (LRU).</p>
  
  <p>I think LRU is reasonable, as LRU element means it will be used at least possible in future. However, MRU element means the element is very possible to be used in future, why evict it? What is the reasonable scenario?</p>