Next week, the Aldrich Contemporary Art Museum in Ridgefield, Connecticut will launch the inaugural Aldrich Decennial, an exhibition in the style of other recurring surveys that is intended to take place every 10 years. The Aldrich has long been celebrated for its taste in the avant garde, offering numerous important artists the opportunity to stage major shows, and the first Decennial seeks to do this on a broader level. Titled “I am what is ar…