Mark Zuckerberg, Facebook’s CEO, has been in the spotlight recently for deciding to donate a huge portion of his wealth to charity. He and his wife, Priscilla Chan, have committed to giving away 99% of their Facebook shares over their lifetime to the Chan Zuckerberg Initiative. Right now, these shares are worth about $45 billion. The couple explained that their initiative aims to “foster human potential and encourage equality in sectors like health, education, scientific research, and energy,” according to its Facebook page. Although this pledge initially garnered a lot of positive media coverage, some critics are dubious about Zuckerberg’s intentions and how the donated money will be used.