I tried with this one, but I couldn't stick with it. So many problems: 1. Episodes are too long. In episode 3 about time travel, we spend the first five minutes talking about why people would want to time travel. Hundreds of authors and philosophers have covered this ground. I'm here for the physics. 2. Tone is too mellow. It sounds like one, if not both of the hosts might be high. 3. I'm not a physicist, but I'm also not an idiot. On the plus side, this podcast would be suitable for kids. On the negative side, conversation starts on the simplest level and stays there.