To Bria. "And I can prove it." She turned back to the whiteboard. "Give me a new problem. Any problem. One I've never seen. Let someone in this room choose it, and I'll solve it right here, right now, with nothing but this marker." The room held its breath. For 3 seconds, no one moved. Then a voice came from the back of the room.
Calm. Clear. The kind of voice that didn't need volume to command attention. "I'll give her one." Every head turned. A woman stood up from the last table.
Silver hair pulled back. No jewelry. A plain black blazer over a white shirt. She looked like she'd wandered in from a university lecture hall, which, in a way, she had. Her name was Dr. Eleanor Voss.
Professor of applied mathematics at MIT. Fields Medal nominee. Author of 11 papers that had reshaped how the world understood topological data analysis. She'd been invited tonight as a courtesy. Harrington liked to surround himself with credentialed names.
She hadn't said a word all evening until now. Dr. Voss walked to the whiteboard.
She moved slowly, deliberately, the way someone handles something fragile. She picked up a marker, a red one, and began to write. The equation she put on the board was nothing like what Harrington had written. It was sparse, elegant, deceptively short. Three lines of notation that looked almost simple until you understood what they were asking.
It was a problem in persistent homology, a branch of topology that studies the shape of data across multiple dimensions. Specifically, it asked for a closed-form stability bound on a filtration of simplicial complexes under perturbation. Dr. Voss's own research group at MIT had been working on this problem for 3 years. They had published partial results. They had not solved it.
No one had. Dr. Voss capped the marker and turned to Whitney. "Take as long as you need," she said. No condescension, no spectacle, just one mathematician speaking to another. Whitney looked at the board.
She read the notation once, twice. Her lips moved slightly, the way they did when she was mapping a problem's architecture in her head, finding the walls, the doors, the hidden rooms. The room was silent. The livestream had crossed 2 million viewers. No one typed in the chat.
No one scrolled. 2 million people held their breath at the same time. Whitney picked up the blue marker.
She started at the upper-left corner of the clean whiteboard, the one Harrington's team had wheeled in and never expected to be used. Her handwriting was different now. Not the small precise script she'd used during the audit. This was larger, bolder, like she was writing for the room to see, like she wanted them to follow. She began with the filtration structure, defining the nested sequence of simplicial complexes, and establishing the inclusion maps between them.