How is wine complex?

"A whole made up of complicated or interrelated parts". That's how Webster defines "complex".
This applies to every woman I've ever known .... but wine?
I've used "complex" to describe many wines in these blogs.  
But, what do I really mean when I use the word complex in relation to wine?
Nothing like putting yourself on the spot.
I'm going to step away and think about this a while.
Okay. I'm back.
Layers.  When I say a wine is complex, I'm referring to the layers of expression on both the nose and the palate. The various layers of scent and taste evolve as the wine sits in the glass and breathes,  revealing new and ever-changing sensations over whatever amount of time you are tasting the wine.
I think that's pretty cool. It's also what makes good quality, 'complex" wine really special.
Here's a great example of an excellent "complex" wine that I've enjoyed recently:
2010 Ojai Fe Ciega Pinot Noir, 93 Points Stephen Tanzer - $46 at The Market
Vivid ruby-red.  Raspberry compote and Asian spices on the alluringly perfumed nose, with notes of Asian spices and sandalwood adding complexity.  Sweet, sappy and expansive, offering sappy red and dark berry flavors and a silky texture.  Gains tension with air but maintains its fruity appeal.  Finishes with sweet notes of candied red berries and rose pastille. (Stephen Tanzer description)

Tom