Tatum says he was partly inspired by his love for Dewan-Tatum, an experience he wishes for his child when she grows up. Most all, he writes,Tatum wants Everly to discover her true “authentic self” regardless of society’s expectations. “I tried to imagine the things I’d want her to read that would help her understand men and sex and partnership better, and at that moment, I realized a strange thing,” he wrote, explaining his decision to write the letter.