The first problem with your submission is that you submitted an incorrect URL that doesn't point to that page.
If a story has had significant attention on HN in the last year or so, we kill reposts as dupes. When posting, you should first check HN Search: https://hn.algolia.com/?q=timeline+of+the+far+future#!/story.... As you can see, it appeared in the last year. I think 23 points counts as significant, especially since there was a huge thread the year before.
Coincidentally, we updated the HN FAQ last night to answer this question.
Finally, please re-read the HN guidelines. Questions like this aren't supposed to be posted to HN itself. You should email hn@ycombinator.com.
If a story has had significant attention on HN in the last year or so, we kill reposts as dupes. When posting, you should first check HN Search: https://hn.algolia.com/?q=timeline+of+the+far+future#!/story.... As you can see, it appeared in the last year. I think 23 points counts as significant, especially since there was a huge thread the year before.
Coincidentally, we updated the HN FAQ last night to answer this question.
Finally, please re-read the HN guidelines. Questions like this aren't supposed to be posted to HN itself. You should email hn@ycombinator.com.