The blog post links “Ridiculous math things which ethics shouldn’t depend on but does” and “Kill the young people” are dead. You can find archived versions of the posts at the following links:
https://web.archive.org/web/20200630023504/http://philosophyforprogrammers.blogspot.com/2014/09/ridiculous-math-shit-which-ethics.html
https://web.archive.org/web/20190429032659/http://philosophyforprogrammers.blogspot.com/2012/11/why-old-people-matter-more.html
The blog post links “Ridiculous math things which ethics shouldn’t depend on but does” and “Kill the young people” are dead. You can find archived versions of the posts at the following links:
https://web.archive.org/web/20200630023504/http://philosophyforprogrammers.blogspot.com/2014/09/ridiculous-math-shit-which-ethics.html
https://web.archive.org/web/20190429032659/http://philosophyforprogrammers.blogspot.com/2012/11/why-old-people-matter-more.html