"I've been developing this model for nearly two years."
"Then you should know why the j minus one matters."
The room reacted.
The Professor's face reddened.
"Do not confuse coincidence with authorship."
"I don't."
She looked toward the board.
"I also know the original version used theta where you changed it to lambda."
A doctoral student checked the equation.
She continued.
"And I know your second condition is unnecessary."
"Because I included it only to make the numerical simulations easier for the fellowship committee."
The Professor stared.
She pointed toward the center.
"And this entire branch?"
"You can remove it."
"No, you cannot."
She erased one assumption.
Students gasped.
The Professor stepped toward her.
"Stop."
She rewrote the reduced equation.
Then completed three lines.
The same conclusion emerged.
A student whispered:
"Holy hell."
The Professor's voice rose.
"Anyone can reverse-engineer simplifications."
The Black woman turned.
"Then do the last step."
Silence.
She held the chalk toward him.
"Go ahead."
His face became hard.
"This is my lecture."
"Your equation."
"Your research."
She extended the chalk farther.
"So finish it."
Nobody breathed.
He did not take the chalk.
Five seconds.
Ten.
Then he laughed dismissively.
"I don't participate in stunts."
The Black woman lowered her hand.
"Neither do I."
She returned to the board.
The Professor said:
"If you continue this performance, I will have campus security remove you."
She wrote another symbol.
He grabbed the eraser.
A student shouted:
"Don't erase it!"
Another:
"Professor!"
He slammed the eraser against the tray.
"Class dismissed."
Nobody moved.
He looked toward the doors.
"Did you hear me?"