If I were to make a podcast app, it'd be centered around making it trivial to create a podcast. I know were all fatigued by our friends creating podcasts, but the barrier to entry is still too high. It's still too much a medium for celebrities, influencers, and motivated narcissists ... and everyone is capable of talking and opining.

AI could probably help a lot stitching short form audio back and forth conversations into a listenable experience.