Related (2021) Turning stem cells into human eggs (97 points, 102 comments) https://news.ycombinator.com/item?id=29040823

How hard you have to work to break scroll on web page? Nice article, but going through it was a technical nightmare.

Can we stop adding unnecessary JS to website to stop global warming by calculating AND ALTERING SCROLL?

That can't be good. Life cycle of a human egg is organized around preserving mitochondria to be as young and fresh as possible across generations. Using adult cell, even a stem cell to make an egg probably gives it mitochondrial damage that usually takes hundreds of human generations to accumulate.

A japanese scientist again (Katsuhiko Hayashi is in Osaka).

Shinya Yamanaka created iPSPs in 2009:

https://en.wikipedia.org/wiki/Shinya_Yamanaka

Guess the japanese excel at micromanaging. Although one could say that the research here in the article is more epic than Shinya's discovery, but I remember having watched one of his presentation and it convinced me of pure epicness, if you understand how his team found the "Yamanaka factors". That was by human (work) consistency. About as epic as Christiane Nüsslein-Volhard and her mutant screens, that also involved tons of micro-experiments.