Open conversations with no script lead to honest thoughts connecting with the listener.
Consuming information for the longest time came from our TV and newspapers before we had things like Twitter, Instagram, and other social media outlets. Whenever you saw someone famous on TV, it was usually a 5 minute set on a late-night show, and they were there to promote their next movie or show. It didn't give you much insight into the actual person; there was no connection. Podcasts allow the host and the guest to express themselves without having constraints or restrictions. The raw material that we all love.
Joe Rogan does this well with his guests; he gives them the space to be themselves and ramble about different topics.
Open conversations with no script lead to honest thoughts connecting with the listener. When someone is on a podcast, you hear them in the moment, thinking, saying "Ummm..." - these nuances make things more natural for the listener. They are small things, but it's the part that connects. I listen to many business-related podcasts, and they dig into the behind-the-scenes of some long-time entrepreneurs, which allows you to get a sense of who they really are.
You get slightly different or new information when you hear the same guest on various podcasts. Each podcast has its niche or focus, allowing the guest to go down additional rabbit holes about their life, business, or other topics. Next time you see the same guest on two different podcasts, listen to both; you will be surprised how much additional information you can pick up.