[chacham15]

You're missing exactly the point. "anti-recent" is a relative term. Imagine that the data set is actually 1000 items long, but we iterate through it five at a time, but we iterate over that five 10 times each before moving on to the next 5. Those five items are much more likely to be necessary than all the 995 other items, but the currently added member is less likely than the other 4 for the next loop. You see, its a relative term. If the cache size had been 5, we would say that this is a nearly perfect example of caching the most likely members to appear.