Jack or Fig is a short story for children (aged 6-7) inspired from the thought experiment in philosophy- Ship of Theseus. It takes you on a journey through the eyes of a little girl Mina, who comes across a grafted tree in the forest.
The original idea was to have an appendix to the book (of which you can see two variations at the end of the project) explaining the thought experiment so the child is introduced to it. However, in the end it looked too forced and a little too much to take in for a child, and hence it wasn't included in the book.
Unlike most children's books that have a moral or a conclusion, Jack or Fig aims to leave the reader with a lot of questions and a certain sense of confusion and wonder, regarding the identity of the tree. This is to introduce the child to the concept of a thought experiment, where there is no right or wrong answer, but only speculative questions.