I recommend reading The world in which IPv6 was a good design by apenwarr: https://apenwarr.ca/log/20170810 https://apenwarr.ca/log/20170810 It has been submi

I recommend reading The world in which IPv6 was a good design by apenwarr: https://apenwarr.ca/log/20170810 https://apenwarr.ca/log/20170810 It has been submitted many times here: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&query=the%20world%20in%20which%20ipv6%20was%20a%20good%20design&sort=byPopularity&type=story https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que... You will find at the end that it has received an update of sorts here: https://tailscale.com/blog/two-internets-both-flakey https://tailscale.com/blog/two-internets-both-flakey