premise: Nick Davis is a visual effects supervisor who has worked in visual effects since the early 1990s. He was nominated at the 81st Academy Awards for "The Dark Knight". He was nominated in the category of Best Visual Effects, he shared his nomination with Chris Corbould, Paul Franklin and Tim Webber.
hypothesis: Nick Davis began his career in visual effects during the final decade of the 20th century
reason: The context says Nick Davis started his career in the early 1990s. The years 1990-1999 were the last decade of the 20th century. The computer may have been confused by the uses of the words "final" and "decade" as well as the reference to years in the form of centuries. 