If we’re out in the solar system, we can have a trillion humans in the solar system, which means we would have 1,000 Mozarts and 1,000 Einsteins.
The world population now is ten times what it was in Mozart’s day. The reason we don’t have ten Mozarts now isn’t because of a population shortage, it’s because too many of those people are living in inescapable poverty so Bezos can indulge his fantasies.