Aris stared. An attractor. In dynamical systems theory, an attractor was a set of states a system evolves toward. The old attractor was a hot, wet, but habitable Earth. The new one…

And the next line in the manual— Climate Modeling for Scientists and Engineers —would have to be rewritten from scratch.

“It’s not a simulation anymore,” whispered Jenna, his post-doc. “It’s a diagnosis.”

“We tell him the truth,” Aris said. He opened a new script and began typing:

Because a model doesn’t just predict the future.

“So we tell the minister no?” Jenna asked.

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