i've been putting some thought and time into this, and it's starting to make sense. if you look at the overall trend of the clicks, you'll realize that the topic of each article in the succession of clicks becomes more and more broad, despite the fact that you searched for something specific. for instance, i searched candy.
wiki search 1 - candy.
first link - confection
first link - sugar
first link - crystalline
first link - solid
first link - states of matter
first link - phases
first link - physical sciences
first link - natural science
first link - science
first link - knowledge
first link - facts
first link - information
first link - sequence
first link - mathematics
first link - quantity
first link - property
first link - modern philosophy
first link - philosophy
i definitely would not come to the conclusion that it is some kind of flaw on wikipedia's part. if you think about it from a broad sense, anything you search for, "candy, beer, sex" etc, has their existence needing to be proven. candy is a confection, which in turn is this...which in turn is this...etc etc...until you end up with the broadest thing possible - philosophy (knowledge). you'll notice the first few words of (almost) every wikipedia starts with -
"insert here" IS.