Project Hail Mary ending explained: author reveals why a key character twist is essential

Ryland Grace, the protagonist of "Project Hail Mary," is revealed to have initially refused his mission and fled before being forced into space. This twist, uncovered through Grace's returning memories, highlights his transformation from a fearful individual to a selfless hero, a crucial element for author Andy Weir. The revelation adds depth to Grace's character, making his eventual bravery and sacrifice more impactful and relatable to the audience.