Been a while since I listened to those particular audios but in my view they are the internet equivalent of reading tea leaves or entrails 🙂
Plus even the same site can vary wildly in popularity – forums tell you that with post and view counts. I can’t find the precise reference but I remember reading that the Guardian newspaper has wildly different page view counts for their articles with most closer to ghost town levels than they’d like.
Track once you start getting some traffic: most log analysis programs will show who referred people to your site. Until then it’s probably down to gut reaction.