Critique of GDP Podcast

I reviewed Ronald and Richards GDP Podcast.
The podcast itself was very interesting. There was music in the background, pictures of the both of them and they talked as if it wasn't a Public Service Announcement. Everything was clear and the pictures had some relevance to the facts but there were hardly any facts.
Despite the obvious that it was a short recording, they only covered what GDP was and nothing more.
Needless to say, I learned nothing from the podcast. Sorry. =[