Lin Nianhe may or may not believe what she said herself, but Principal Wu definitely doesn't.
After so many years in education, she has never seen a class full of "geniuses". It could be possible in high school to sort the good-performing students into one class, but in first grade, where they are divided by age, how could that be possible?
Principal Wu didn't believe it, but someone did.
Several students who were playing with marbles under the window heard and believed it, and they immediately spread the word—
"Teacher Lin said that the students in their class are all geniuses!"
"What does 'genius' mean?"
"It means someone like Niuwa!"
"Ah? Then does that mean their class will go to middle school earlier than us?"
There's probably no better place than a school for spreading news faster than a cornfield; by the end of one break, the whole school knew.
