Earlier quoted context omitted.
To be fair, I've never had a problem remembering IP(v4) addresses, much like with phone numbers and (physical) addresses. The real advantages of using domain names is that it associates a word or phrase with the site, can remain the same while the IP changes, and also allows for virtual hosting. Imagine a world in which the Internet grew and commercialised before DNS ever appeared --- we may have ended up with IPs be…
Ya, it would be a world where everyone uses a "phone book" because most people would only memorize their most often used numbers. In other words, google would be even more dominant.
Well, if the phone book gets too big, we can always add a unique human readable name to each, and then synchronise everyone's phone book world wide so everyone can share their notes. People could apply to have a human readable name associated with their IP address thats easy to remember.