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Yo dood I want to make a fancy mcsnazzy collaboration series on YouTube. Can chat over it on Skype or discord or whatever u choose I don't mind. Hit me up on here and let me know if u wanna be on this show. We will cover many topics and always discuss what it will be about before we begin. I'm...

What exactly does the "Optimise Timing" mean that you can choose when putting a video or the featured content? I know it means that YouTube will put the featured video link in the video at its best point possible to help it get clicked on, but how does it do this?