Yup. Strong viewership is needed, in terms of engagement by viewers ( thru comments and likes), as well as how long your viewers watch (watchtime). Modt importantly, if you are solely relying on the your viewers to watch ads on your video to earn, the rates in which you can earn is dependent on the countries of your viewers. Viewers from certain countries would give you a higher ad pay rate.Thanks for the explanation. It seems you won't earn that much unless you vlog on YouTube with good amounts of subscribers and views.