Artists can never be 100 percent sure of their legacies. Some die famous and confident they'll be remembered for generations. If they're lucky, they might be right.

Thing is, art historians are a selfish bunch, willing and able to rewrite history to suit themselves — and their times.

"When Jasper Johns and Andy Warhol emerged, everyone thought Johns was above Warhol," says Japanese artist Takashi Murakami, who, for about seven years, has been Japan's international art world flavor of the month.