I'm not sure why the HN admins now have such a propensity for changing informative article titles that contain actual numbers into vague click-bait original titles. I've been here for over ten years, and only noticed it happening over the past few months.
The title I submitted contains information: "Human fertility rates have fallen nearly 50% since 1950".
The weak original title ("'Remarkable' decline in fertility rates") contains no information.
The title I submitted contains information: "Human fertility rates have fallen nearly 50% since 1950".
The weak original title ("'Remarkable' decline in fertility rates") contains no information.