Qwen Flash turns a sci-fi prompt into a full rocketry derivation before writing the story

LankyGuitar6528 · reddit · 2026-10-29

A Redditor asked Qwen Flash to write a sci-fi story about landing on an alien planet — and the model spent an enormous amount of output working through orbital mechanics first: Tsiolkovsky fuel ratios for braking from 0.1c, stage mass budgets, and even catching that its capture burn left the ship just above escape velocity, then fixing the plot by making the fusion drive's self-destruct a 735 m/s recoil braking maneuver so the numbers close. The author jokes it spent longer modeling planetary arrival than NASA plans a Mars mission. Both funny and a vivid look at reasoning-model behavior.

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