At the cargo bay, a wrapped token is not merely festive; it is a claim on a tightly rationed manifest. Beside meal packs and research hardware, its mass enters the same ledger, while its foam, ink, battery, and fastening must survive launch vibration, microgravity handling, and fire-safety review. Cheer travels by paperwork. But the restraint has a logic: a small surprise can disturb a mass budget...More