Albert Einstein famously said the definition of insanity was "doing the same thing over and over and expecting different results" but Luc Tuymans disagrees.
The Belgian painter reserved his use of the word for the plans to move Antwerp's Museum of Contemporary Art collection to Ghent's Museum of Contemporary Art.
He told the Guardian the plan, which comes after the government canceled a planned $93 million new home for the Antwerp museum, was "simply insane", adding: "You cannot simply take a collection of artworks and transplant it into another ecosystem, because such an ecosystem does not exist."
Anish Kapoor, whose work is in the 8,000-strong Antwerp collection, has said he refuses to "accept" it will be moved as part of the plan which was also condemned by museum leaders including Tate's outgoing director Maria Balshaw, Chris Dercon from the Fondation Cartier in Paris and the Pompidou Center's Laurent Le Bon.
It comes against a background of budget cuts across Belgium with reports they might threaten the future of Brussels' new contemporary art museum Kanal before it even opens later this year.