I am a huge Ted Chiang fan, but your review misses one of the most amazing things about his writing -- it is written in very brief and straightforward words and sentences!
A number of his short stories are available for free online, for instance Exhalation in Lightspeed magazine. Under 'Works' on his Wikipedia page, you can find others (sometimes via web archives)
A large recent RCT found that free contraception had no impact on birth rates in Burkina Faso - I wonder if/how this affects this cause area
One website, which doesn't quite match all your criteria, is https://longbets.org/bets/, which has bets from people like Warren Buffet, Scott Alexander, Ray Kurzweil, and Eric Schmidt
GiveWell's cost to save a life has gone from $4,500 to a range between $3,000 and $5,500:
https://www.givewell.org/how-much-does-it-cost-to-save-a-life
From at least as early as December 2023 (possibly as early as December 2021 when the page says it was first published) until February 2024, that page highlighted a $7.2 million 2020 grant to the Against Malaria Foundation at an estimated cost per life saved of $4,500.
The page now highlights a $6.4 million 2023 grant to the Malaria Consortium at an estimated cost per life saved of $3,000.
You can see all the estimated cost per life saved (or other relevant outcome) for all GiveWell's grants at this spreadsheet, linked-to from:
Luckily those suggestions are all useful for SEO too!
Some other things to consider (from figures like Tyler Cowen[1] and Patrick McKenzie[2] (edit: also Gwern) who talk about how their primary audience is now LLMs):
Search for "Generative Engine Optimization (GEO)" in this podcast
Amodei claims that 90% of code at Anthropic (and some companies they work with) is being written by AI