As I was tucking in youngest son this evening, he told me still was going to follow the plan he made when he was three.
“Mom, I’m going to build a rocket. There will be the large one with the small one attached to it, you know the way they make rockets. The large part will blast it into space to the moon. I’ll attach a video camera to it and get a movie of the moon. I’ll have to weight it down, so I’ll make a space to put the concrete. Then on Monday I’ll bring the video to school and I’ll show it to my class because I can share on Mondays. I want to study the moon.”
“So you’re going to be an astronaut?”
“Yep, I’m going to fly to the moon and study it. You know it’s always full, there’s just a dark side. If you look close you can see the line. See? It looks sort of green.”
“I see.”
“I’m gonna study the moon and be an astronaut. Well, for one of my jobs. I don’t know what else I’ll be. Besides, I’d love to go to the moon.”
“Do you know that’s a great story? Maybe that can be your next story for writing.”
“That’s a story?”
“Yes. All you would have to do is write it down.”
“Really, that could be a story? Could I start it with ‘I’m still going to do the plan I made when I was three’?”
“Yep.”
“I can do that. I’m gonna fly to the moon.”
“Promise me you’ll fly home.”
Ah, my little astronaut writer.
ohbloodyhell8 
You need to save that, and when he DOES become an astronaut and studies the moon, you can show it to him. So charming!
Not sure if this posted just now–got a weird screen. But you should keep this story and save it, and show it to him when he DOES become an astronaut. And I sure hope he does that, and gets to study the moon too. So charming!