研究youtube / how it works

i have been creating new music on youtube channel since january 1st, based on some reading and my own observations, some key points: 

the most effective way is to have youtube promote (present your video to others at right time and to the right audience), how to get youtube to promote the video ? 

> title /thumnail combined helps click-through rate, so good thumnails and great title can raise curiosity and attract views to click the video. 

>  watch time is an important metric, after the viewer clicks in. if the viewer exits before 30 seconds, it doesn't even count as a view , watch time  tells youtube if people likes your video and quality of it based on the interests of the viewers who got in. 

> backend metrics (many of them, around 15 - 20) , youtube studio also show a lot of metrics , it tracks each video 's impressions, views, likes, comments, and sharing  actions , anything acted on video is a good sign, including dislikes, this help video to get ranked higher, it is all backend data-driven .

> those videos with high ranking will be promoted by youtube, click through rate is number 1, number 2 is the video has to attract and keep viewer's attention, the longer the better, every second in the video is important , which means quality video gets  high ranking. 

youtube is a fun game to play outside our day job, a personal vlog, the market and the demand is huge and unbelievable, it is truly amazing it hosts billions of videos and viewers at ease (anyone can post a junk video at any time for example) , many fun opportunities to explore, sometimes it yields interesting and unexpected directions. 

顺便 promote my music channel,  cheers！

https://www.youtube.com/@artlover-us/videos