How did Galileo explain why people did not feel the rapid motion of a supposedly moving Earth?

Answer

Everything on Earth shares the Earth's motion, including the atmosphere.

Galileo proposed that the atmosphere and all objects on Earth share the planet's velocity, meaning the motion is undetectable in daily, relative experience.

How did Galileo explain why people did not feel the rapid motion of a supposedly moving Earth?
GalileosunEarthrotationProof