Is “Possessed talent equal to eight dou (a measure) and wrote the 'Rhapsody on the Goddess of the Luo River' to express his longing” true?

世说新语 praises his literary talent as being eight dou high; 洛神赋 (originally titled 感甄赋) has been passed down through the ages, and official history confirms his supreme literary talent. For instance, Records of the Three Kingdoms, Book of Wei, Biography of Rencheng, Chen, and Xiao Princes records: 「年十岁馀，诵读《诗》《论》及辞赋数十万言，善属文。」