This. The linked article's title is "Deliverance From 27,000 Feet". It's been posted on HN four times (see https://hn.algolia.com/?query=https:%2F%2Fwww.nytimes.com%2F... ), but I believe first post is https://news.ycombinator.com/item?id=15951204

Although the main theme of the article is about the recovery of a body from near the summit, it has background information on when climbs can take place, and how the route to the summit is established every year.

IMO, it's a worthwhile read!