Chan Zuckerberg is NOTORIOUS for overly ambitious claims, the Chan Zuckerberg Initiative started in 2015 with the bold statement they would "cure all disease in our lifetime." It's been 11 years. Have they cured 1 disease? Let alone ~all~ disease? No.
When Zuckerberg realized he probably wasn't going to hit this goal they quietly changed it to "within our children's lifetimes."
I used to work in their building and actually saw them change it on the wall and as "within our childrens" 3 years in. Stay posted, probably in 15 years they buy themselves some more time and make it "our children's children's lifetimes."