On the subject of Olafur Eliasson, Peter Schjeldahl says:
"...there should be a nice, clean, special word other than "art" for what he does, to set him apart. There won't be. "Art" has become the promiscuous catchall for anything artificial that meets no practical need but which we like, or are presumed or supposed to like."
-from his review of the Olafur Eliasson retrospective, the New Yorker, April 28, 2008.