A urinal which Marcel Duchamp titled Fountain and signed "R. Mutt". It is regarded by the art establishment as a major landmark in modern art. Replicas commissioned by Duchamp in the 1960s are now on display in a number of different museums around the world.
Karla Blacks suspended paper and plastic sheeting, called What To Ask For Others, was shortlisted to win the 2011 Turner Prize - the world's most prestigious art competition.
The niece of a friend of mine was a brilliant and gifted young artist. She won a scholarship to one of the world's most prestigious art schools - where she presented a portfolio of her stunning drawings and watercolours. By the time she graduated, she had not picked up a brush or pencil in over a year and was stapling bird feathers to an old shipping pallet as her graduation work. She now works as a receptionist at a dental clinic.
The term "Gaslighting" is used to describe how a psychopath in a personal relationship with another person will slowly over time change the reality and perceptions of the individual they are targeting. A proficient psychopath will, in time, have a once perfectly stable and emotionally healthy person literally believing that black is white and up is down. Essentially, the psychology of the target has been altered in a way to accept what they see before their own eyes - is not what they once believed it to be.
One of the most effective forms of public gaslighting has been modern art.