confused about ending
I am confused about ending. What did the alien think about when the boy communicated to him that he could go, and not everyone is bad.
The alien, then re-created his spaceship and flew off.
What was he building in the underground? It's not shown that whatever he was building in the underground, whether it was used for his space ship.
It seems so easy and effortless in the end to just tell the cubes to rebuild themselves into space ship? Why couldn't he do that anyway much earlier?