According to Cosmos, why are there so many stars?

Stars form from the diffuse, cold interstellar gas that makes up molecular clouds! These clouds spend roughly 100 light years And hold between 10,000 and 1 million solar masses of material! It already has churned out thousands of stars and thousands more are growing inside dark clouds of cold hydrogen.

This probably doesn’t make sense

because the center-south is called the heart of the country