I caught DS4 playing last month - standing in front of his whiteboard with a toy microphone talking to his toys. He said "Hi my name is [name], Im an astrophysicist, today I am going to teach you about the planets & the universe" then he started drawing in detail our solar system & drawing spiral galaxies.

When I ask him what he wants to be, he usually replies astronaut (wants to live on Mars), Doctor and an astrophysicist