"Well, I think there are artists who are more or less contemporary with Hopper who are more relevant"

Donald Judd's quote recommends that there are artists who are more pertinent than Edward Hopper, regardless of being contemporaries. Judd indicates that Hopper's work is not as appropriate as other artists of the very same era. He might be referring to the fact that Hopper's work is often viewed as sentimental and romanticized, while other artists of the very same period were producing more modern and ingenious works. Judd's quote suggests that Hopper's work is not as influential or essential as other artists of the exact same age. He may be suggesting that Hopper's work is not as appropriate to the existing art world, which other artists of the same time period are more prominent and essential. Judd's quote is a suggestion that art is constantly developing which the importance of an artist's work can change over time.