[learc83]

It's the entire world that; lives in a timezone the employer is comfortable with, speaks English with near native proficiency, comes from or can adapt to a culture that is close enough to the employer's culture to fit in, has access to a reliable electrical grid, and has reliably fast internet access.

Basically If you're already in America, you have several huge advantages over the rest of the world when applying for remote work (permanent or contract).