Anyone who is thinking of podcasting or doing podcasting always has the fear of running out of ideas. One big issue is how to connect your Podcast idea with that of the guests' expertise. It is here that some fast thinking can help. For example if my podcast is on spirituality and I get a NASA scientist I can still ask him interesting questions on my subject even though he/she is person of science. Same with several other guests from different background. This will help a pod-caster not face burnout or feed jaded or lack of content.