Artist searches for needle in haystack at Paris museum

"It's like finding a needle in a haystack."  This is an English idiom.  The expression means that something is impossible.  Is this idiom in your language?  What is your opinion of this artwork?

Paris art museum

NBC Nightly News

http://www.nbcnews.com/news/world/artist-looking-needle-haystack-literally-n248476 

Artist Searches for a Needle in a Haystack for Two Days