It's hard for children's authors to be accepted when they try to write adult books. J.K. Rowling is the exception because people are so eager to read anything by her but it took Judy Blume three or four tries before she had a success.
Just as we accumulate memories of facts by integrating them into a network we accumulate life experiences by integrating them into a web of other chronological memories. The denser the web the denser the experience of time.