Debating

So i have been reading books for quite some time. Almost a year now. Anyway i was sitting at my computer when my dad said i should write a book. It is an interesting thought, and i would love to. The only thing is that if i do decide to write a book I would like to have a good subject. You know with some philosophical question that I discretely answer. Also I need to have some ideas, and right now i dont have any, but if i should write one. You will be the first to know. Anyway I dont think it is a good idea at the present.