Community -> Living -> Life -> Physical body -> Physics -> Natural science -> Science -> Knowledge -> Fact -> Information -> Sequence -> Mathematics -> Quantity -> Property (philosophy) -> Modern philosophy -> Philosophy -> Reason -> Human Nature -> Thought ->... The fact that http://en.wikipedia.org/wiki/Panpsychism tends to be the last part of the chain before it repeats is just less interesting.
PS: I suspect that most articles can be reached by every other article so you can take just about anything and say it's the "root" article for the rest of Wikipedia.