In-depth analysis of American immigration: what are the conditions for EB 1A talent immigration?

What are the requirements for EB 1A talent immigration in the United States?

Applicants need to provide relevant materials to prove that they have certain professional skills in the fields of science, art, education or sports, and their talents and achievements have been recognized and respected at home and abroad. Even so, this is not the case. The concept of "outstanding talents" is not fixed by the US Immigration Service. The above fields cover almost all occupations, then? Don't worry too much, ordinary positions also have the opportunity to apply.