Perhaps you're thinking of Forster's "The Machine Stops"? There's been plenty of submissions to HN in the past, with links to the story text, and user comments

Perhaps you're thinking of Forster's "The Machine Stops"? There's been plenty of submissions to HN in the past, with links to the story text, and user comments: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&query=%22The%20Machine%20Stops%22&sort=byPopularity&type=story https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...