1) I can look up a thing I can't remember (or don't know) both specifically and immediately. 40 years ago this might have taken a week and an inter-library loan. I'd certainly be sure to remember what I'd learned afterwards. And,
2) Things that I once looked up can be silently changed or removed the next time I try to look them up.
I don't think it's useful to handwave the material differences away with a general "People always say stuff about everything."