This is the original short story. I recommend that people read the full book instead or at least read the book first to avoid spoilers. It's at least as good as the short story but expands on the ideas and the story line significantly.
I don't know about this one (I only read the story) but every time I've read a full novel that was originally a short or novelette it felt dragged out. Even when I didn't know beforehand it was made out of a short.
It's sad that the market for shorts is basically gone.
Oh... wait! Let's go on a tangent.
I used to subscribe to Asimov's on Kindle before they kicked separate subscriptions out and left only Kindle unlimited available...
Asimov's went to some dubious solution through some distributor that had their own mobile app, so I didn't renew there.
Well guess what: I checked Asimov's again and now they still have the dubious app but it looks like you can subscribe directly on their site and get epubs and pdfs! Guess I wasn't the only one who didn't like the dubious app...
There is hope for shorts after all...