"The mirror thing," he said. "Nobody would have dared that."
"I know," Isaiah said. "That's why it survived."
Chapter 15: Impossible, Again
Professor Edmund Harrow broke his silence on a Tuesday, in the largest lecture hall at Whitmore, in front of four hundred students and β though he did not know it yet β Emma Lawson's camera.
He had not spoken publicly since the video. Colleagues described him as composed. Students described him as a held breath. He dismissed his class ten minutes early the Friday before, something no living alumnus could remember him doing, and spent the weekend, according to his secretary, alone in his office with the Gazette's photographs of Isaiah's boards spread across his desk like evidence at a trial.
"The department," he announced, without preamble, "has lately entertained a performance."
The hall went still.
"A clever performance. I do not deny its cleverness. A transformation, a mirror with a flaw in it β very theatrical. But mathematics is not theatre." He set his notes down with terrible precision. "Mathematics is proof. What Mr. Carter has produced is a sketch. An intuition. Perhaps β I concede perhaps β a promising intuition. What he has not produced, what no one has produced in thirty-seven years, is a proof. The Kessler Equation remains what it has always been. Impossible."
He let the word settle over the hall like dust.
"And I will not have this university β my university β stampede into embarrassment by the modern route of a viral video. Science is not conducted by applause."
In the back row, Isaiah sat very quietly with his notebook unopened on his knees. Theo, beside him, was vibrating with the effort of not speaking. Four hundred heads had turned, in ones and twos, toward the back row. Isaiah could feel the attention like heat on his face, and underneath it something else: the old, familiar wish to be smaller, to be the young man with the mop again, invisible and safe.
Harrow was not finished. A challenge, in his world, was a form of mercy β it gave the condemned a date.
"So let the matter be settled properly. Mr. Carter." Every head turned at once now. "You will present a complete, rigorous proof β every step justified, every assumption stated, no mirrors, no metaphors β before this department in fourteen days. If it withstands scrutiny, I will say so in this room, on the record. If it does not β" he paused, and for an instant, something almost like regret crossed his face β "then the seminar-room enthusiasm ends, and we return to our studies."
It was, everyone understood, an execution scheduled with perfect courtesy. Fourteen days to formalize a proof that had resisted the entire profession for thirty-seven years. Chen, who had come to observe, stood at the side door with her jaw set. She did the arithmetic instantly: the second stage alone had taken Isaiah nine nights, and the full structure had at least five stages, each requiring formal justification, each a fresh place to fail.
"Fourteen days," Emma whispered to her notebook. "He's giving him a rope."
Isaiah stood up. The motion rippled through the hall. He was aware of his own heartbeat, of Theo's hand briefly gripping his sleeve and letting go, of the chalk-dust smell of the hall he had cleaned a hundred times. He thought of his father at a kitchen table in Chicago, writing in margins nobody would ever read, told by men like Harrow β in letters, in reviews, in silence β that his ideas were promising intuitions too.
"Professor," Isaiah said, and his voice, to his own surprise, carried to the front of the hall without effort. "I'll need library access after hours. And the seminar room on Sunday. And Dr. Chen's help, if she's willing β not to write it. To check it. Every line."
Harrow studied him across the length of the hall, the legendary professor and the scholarship student, and something in the old man's expression shifted β not softening, exactly, but sharpening, as if he had finally been offered a worthy opponent and found, to his own astonishment, that he had missed the feeling.
"Fourteen days," Harrow said. "The library will be informed. Dr. Chen may assist as verifier." He gathered his notes. "Do not be late, Mr. Carter. Impossibility has waited thirty-seven years. It can manage fourteen days."
The hall erupted as the doors opened β arguing, laughing, already dividing into believers and skeptics. In the corridor, students were repeating the terms like odds on a race: fourteen days, five stages, one sophomore against thirty-seven years of certainty. Someone had already started a countdown on the Gazette's page. Isaiah moved through the noise without answering anyone, holding his notebook against his chest like something fragile, aware that by dinner the whole university would know the date, and that there would be no quiet left anywhere for him to fail in.
He sat back down slowly in the emptying hall and opened his notebook to a fresh page.
At the top he wrote, in his neat upright hand: DAY ONE.