Well apparently
Each object is carefully assembled to draw out its particular emotional and associative resonances, elevating discarded leftovers to the status of art object while flouting conventional hierarchies of display
But if you ask me people like Jackson Pollock who can really make abstract art work come along once in a generation and in the meantime there's an awful lot of
discarded leftovers to wade through.
Being less flippant the discarded leftovers angle is obviously a reference back to objet trouv� art from 100 years or so ago.
http://en.wikipedia.org/wiki/Found_sound
Marcel Duchamp's water fountain was an adapted urinal. The art in this is to take a common object and relocate it and title it to give it a new significance. Probably to provoke disgust and maybe to get people to consider why that should be- that it is association and not the object itself that provokes that emotion.
But I must say I can't see discarded leftovers or unmade beds as being anything like as clever as that