Australia has a phone number you can call if you need help improving your literacy, and there were a bunch of TV ads advertising this number via a jingle that is catchy enough that I still remember it to this day (not having lived in the country since 2016). Plausible that that jingle was more optimized than most for memorability given their target market, and indeed I don’t think I remember any other phone number jingles. If true, suggests that there continues to be returns to optimization for catchiness for quite a while.
Australia has a phone number you can call if you need help improving your literacy, and there were a bunch of TV ads advertising this number via a jingle that is catchy enough that I still remember it to this day (not having lived in the country since 2016). Plausible that that jingle was more optimized than most for memorability given their target market, and indeed I don’t think I remember any other phone number jingles. If true, suggests that there continues to be returns to optimization for catchiness for quite a while.
I guess it could be that that hotline had a more consistent phone number and advertisement style than others.