The movie focuses pretty heavily on a Christian or at least monotheistic God, and the book has some different depictions of gods and how humanity relates to them. Hadden is the most obvious: a maybe immortal man, living in the sky, who saves the plot with a deus ex machina.<p>I remember Hadden having built a theme park&#x2F;commune in a jungle somewhere which had polytheistic and maybe sacrificial elements.<p>The protagonist discovers that existence is neatly ordered, down to the digits of pi.<p>It&#x27;s not proselytizing, but it looks at how humans react to higher powers, whether they&#x27;re called aliens or faith or gods. It&#x27;s a skeptic&#x27;s inspection of the humanness of belief and faith.