I was revisiting this episode the other day, and got curious what everyone said about it back in the day, and since no one saw it quite how I did (Eytan probably had the most similar perspective to mine), I thought I might pop in and Lazarus this thing.

For me, this was a story about the paradox of being creatures with agency in a world where shitty things happen that are outside our control. I don't think it's a story about taking responsibility for the mistakes of the past. I think it's a story about how when the really bad stuff happens--the stuff that takes something away from us that we can never get back--we'll obsess over everything leading up to it, desperately trying to figure out where we went wrong, what we could have done to make the Bad Thing never occur at all.
I think this relates to survival. We want to find the pattern so it won't happen again. In fact, I've heard it said that *all* storytelling is about survival in this way, that we like stories because they show a cause-and-effect pattern correlated to whether the character had a good or bad outcome. In a good story, it all makes sense at the end and we, the audience, have learned some valuable information for surviving/achieving the good outcome in a similar situation.
The problem is that in real life, our own particular behaviors are not, in fact, always the root cause of the Bad Thing. The best example I can point to is rape culture logic, and how people will point to things like clothing/alcohol as the thing the rape survivor did to bring the Bad Thing on themselves, ignoring the fact that there is no actual cause/effect relationship between drinking alcohol and rape (as evidenced by the fact that guys who drink aren't likely to get raped, generally speaking). It's the rapist who made the choice that caused the Bad Thing, and who could have reasonably chosen otherwise. And yet, survivors of rape experience an immense amount of self-blame and the reflexive, obsessive examination of all their *own* choices, much like the guy in this story, when the truth is there isn't anything the guy in this story (or rape survivors) could have done, *with their own choices*, to avoid the Bad Thing, and trying to find the Survival Lesson is just going to drive you into depression and self-destruction.
(Interestingly, I've noticed that people tend to apply story-logic to people's actual, real life experiences in attempt to reassure themselves it would never happen that way to them, personally. If you've ever made a Zombie Apocalypse Survival Plan that ends with you in your Fortress of Awesomeness in your hometown, ruling the roost and totally not dying from strep throat, you've engaged in this sort of thinking. "In that situation, I'd just ____" usually ignores how friggin' difficult it actually is to predict what your own response will be in a completely messed-up situation that's so out of the norm and unbelievable that you can't believe it's really happening to you, even as it happens.)
What I love is how the story doesn't stop there, and it then examines the other half of the problem: yes, there are things that happen in our lives that are radically disconnected from our own choices. But we're still creatures with agency, and there are choices we can make between and through the choices that are made for us. I think this story was trying to say that there comes a point where you have to accept the present as the new beginning of the choice-tree, and go from there. Maybe you could call it "accepting the consequences of your choices" if you look at it one way. From another perspective, it's "accepting that your choices don't always mean anything". One way or another, the trick is to stop trying to mentally undo the Bad Thing and just accept it as part of the background of your life, and make new choices without the burden of self-blame. If you don't move on, your brain's own survival impulse will destroy you.
Anyway, yeah. One of my favorite PodCastle stories ever.

Nice to revisit it.