Without consciously focusing on the podcast (everything outside the window was too interesting), I became aware that, in just a few minutes, I was already entirely invested in the story and was desperate to continue listening to hear the story's resolution.
When you read, you need to concentrate. You need to process what you have just read and need to know when to turn the page. You need to re-read the words when you miss something. And you need the willpower to ignore your surroundings.
With a podcast, you don’t.