Language is itself a simplification of an embedded representation of a worldview; the map is not the territory.  Within simple views we can find the buds of complexity.  Platitude or not, there is very little that is new, but increasingly novel ways of looking at old things.  For me, this is key.  Whether it is necessary or not, a positive outlook helps one recognize serendipity and solve problems.  That's what is meant by a sagacious state of mind.  How does a negative outlook help Wikipedia?  Do we have good reason to avoid a positive outlook and discourage sagacity?  Here's a relevant encyclopedic platitude: it's not how big it is, it's how you use it.  How should we use Wikipedia?  How will it be used in the future? And how should we treat the users who use it?