Agreed, I have seen some modern art based on illusion, which is quite clever, but most of it such as this is just pretentious ****e.
ANYTHING can be art, its just how its interpreted. Art is a language that most people never learn, so we end up with threads like this full of 'annoyed' people saying how its all crap.
I was at Tate Modern the other day there, and whilst I didn't necessarily understand some of the pieces, I realise that that is my fault, not anyone elses, so I would never say that anything that I didn't 'get' was rubbish.
Regarding the pretentiousness, well, yes, but there is a difference between the concept of a piece and the nobbers who waffle on about it and make it obscenely overpriced - An artwork containing someone's bed, ok, fair enough, that in itself isn't the problem, its the people, but unfortunately, non art people don't seem able to make that distinction, so the entire thing is classed as 'rubbish' or 'pretentious'.
Is that more artistic than not making your bed and tidying up? I think that it might be.
The way I always look at these things is that its a justipoxition as regards to it being the complete opposite of some pretty little picture that people 'think' is art. This great mythical distinction between art and the mundane.
For example, I have seen pictures of rotting fruit, etc - Why does the pretty (and dull as ditch water) little bowl of fruit get called art when the opposite (and visually more interesting) doesn't??
Like I say, anything can be art, its just how it is perceived.
...... That said, my bed much be worth a freakin' fortune, I wonder if I can sell it to someone with far too much money!!
Adrian's a modern art fan!! 
