They stubbornly cling to this point, belittling Jiang Cheng's theory from different angles.
This mode of attack is indeed tricky, as Jiang Cheng finds it difficult to refute their words.
They haven't said anything substantial, just used some vague arguments to downgrade his theory, so Jiang Cheng can't directly refute their words either. He can't convince everyone of the value of his theory just by talking.
Value is a very subjective thing; everyone has different views, and mere words can't convince others.
Only by presenting tangible evidence can you make everyone believe in the value of what you have.
Jiang Cheng can't just grab everyone and insist that his theory is very valuable and has great potential impact on the future.
No one can be certain about the future, so Jiang Cheng can't immediately prove the value of this theory.
To completely refute those people's views, Jiang Cheng has to present enough evidence to prove the correctness of his theory.
