Sorry to hear that! I’m not sure why it’s doing that—it’s just hosted on Github. Try this direct link: https://leopoldaschenbrenner.github.io/xriskandgrowth/ExistentialRiskAndGrowth050.pdf
Thanks. I generally try to explain the intuition of what is going on in the body of the text—I would recommend focusing on that rather than on the exact mathematical formulations. I am not planning to write a summary at the moment, sorry.
Thank you for your kind words!