Well, I don't have anything to add that hasn't already been said.
I liked this one a lot, and immediately thought about Europa and Arthur C. Clark.
The only gripe I have is a technical one.
The audio of the story was about 20 db softer than the endcaps. In fact, I was only able to hear the story because I have a custom ROM on my MP3 player that allowed me to boost the sound beyond what should have been safe levels. And that of course caused interference in my less-than-expensive headphones, but that's a small price to pay for such quality fiction.
The price that I didn't like paying was getting my eardrums assaulted by the outro music that was turned up way too high.
I appreciate all of the effort that goes into making an episode of EP. From finding a story, buying its rights, finding a reader, getting the recording, editing it, getting the intros and outros, adding music, removing profanity, perhaps getting Mat to include a disclaimer and so on and so forth (that's my way of saying "there's probably more stuff going on behind the scenes that I don't know about and I didn't even mention Paul"). Anyway, what I'm saying is, this is a great podcast. It truly is. But what frustrates me is that all it takes is a single mouse click in Audacity to normalize the sound levels, and that tiny effort will take this from being "great" to "the best in the known universe". Usually the staff at EA pay attention to these little details, and it only goes to show the high quality of their work that when they miss it, it's noticeable.
So, not exactly a complaint. More of a "hey! You missed this." kind of comment.