Yun Tianming

Character from remembrance-of-earths-past by Cixin Liu

The terminally ill engineer who bought a star for the woman he loved without telling her, then volunteered his own brain for the Staircase Program. Captured, kept, repurposed by Trisolarans, he smuggled humanity's only escape route home as three children's fairy tales.

Also known as: Tianming, 云天明, Will Downing

What They Know

• The exact orbital geometry of the Staircase capsule's lightsail nuclear pulse acceleration that intercepted the Trisolaran fleet
• Three fairy tales encoding curvature propulsion, the black-domain safety zone, and the dual-vector foil — composed under Sophon's surveillance without alerting her
• Trisolaran psychology after a century of close observation, including how Sophon makes decisions when no one is looking
• The full price he agreed to in the contract that bought DX3906 for Cheng Xin without her name on the deed
• How to live alone among an alien species for four hundred years without losing the desire to send a message home

Connections

• loves — cheng_xin
• friend_of — ai_aa
• member_of — staircase_program
• ally_of — sophon
• located_in — trisolaran_fleet

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