Looks like his server is in damage control, Web Archive has a copy but is in the same state for me: https://web.archive.org/web/*/https://www.kguttag.com/2019/1...
I have up the capacity, but when the cite hits #1 on Hacker News (as it is right now), it looks like the traffic is still overwhelming. It probably does not help that I put the larger associated document for people to download (I was going to put a link up but the link was not working in the Chrome browser).