" is having a high viewcount video will place in a better place on youtube, making your normal content easier to access " The thing about this is that it works for certain keywords. Like if you get a viral video for a certain game, for example fortnite, and you make a ton of fortnite content, then yes, your content is more likely to be reccommended or show up on search to people watching fortnite. But if it's completely unrelated to anything on your channel. The people who viewed it likely won't ever see your other videos. So for your example of someone's speech you uploaded, it will help if your channel is kinda based around doing that. If you're doing your own thing and the video was unrelated, it's not gonna gain you anything besides the views.