On Earth, I’m One of the Wallfacers in The Three-Body Problem

As the sun approached its helium flash, Earth began a long journey adrift through the cosmos, and humanity had no choice but to retreat underground into cities.

"You're the Trisolarans?

You want a human from Earth like me to be your Wallfacer and help you deal with the powerful civilization of Earth?"

Chen Yu was a little confused. He pointed at the droplet floating in space. "You have technology that arranges hydrogen atoms in a dense lattice using the strong nuclear force. You still can't deal with Earth's civilization?"

The Trisolaran representative shook his head, indicating that it wasn't enough.

Then Chen Yu pointed at the Sophon beside them, invisible to the naked eye. "You can touch the eleventh dimension and control nine dimensions of space. You still can't deal with Earth's civilization?"

The Trisolaran representative shook his head again, saying it was far from enough, then explained,

"Esteemed Wallfacer, do you know about pocket universes?

A pocket universe capable of holding the mass of hundreds of solar systems could exist in reality at no larger than the size of a button."

Chen Yu: "Sure, I guess."

This book is also known as: So, the Person with the Most Power in the Trisolaran Civilization Is Actually a Human from Earth