Yongchuan refers to fortune telling _ Yongchuan fortune telling street

Why do fortune tellers know my last name by measuring my fingers? Is there a scientific basis for this?

Nonsense.

He can't work out your last name or anything, but it's based on the relevant information you provided (you can't help talking to him).

Otherwise, why don't you think the country vigorously develop such talents and attack them instead?

Because it's a lie.