Bola Asing (Sphere)

The setting feels so claustrophobic and mysterious—I'm curious whether the ocean environment was chosen for its symbolism or practical reasons in the story.

The psychological tension was intense, but I wondered if the characters' own fears sometimes overshadowed the larger mystery. How did others interpret their reactions?

There’s a real focus on fear, trust, and denial—did the author intend to comment on human nature when faced with alien life?