I had to maintain a little physical phone book because, while I can memorize 10 people’s numbers, I cant memorize 25, 50, 100. Not having that with me when I needed it, or if you lost it and had no backup, was far less convenient than today. It feels like this is a case of magnifying a minor, rare modern inconvenience and ignoring all the huge inconveniences of the past in favor of a super narrow case where it was debatably “better”.