Seems Zuck hasn’t read the psychological reports about the effects of using FB.
A 2017 report titled “Association of Facebook Use with Compromised Well-Being: A Longitudinal Study,” was published in the February issue of the American Journal of Epidemiology
According to the report, exposure to carefully curated images and posts on FB has a negative mental effect. ie; we’re comparing our insides to everyone’s outsides. I doubt there’s a way for Zuck to change that.