Zuckerberg pledges ‘99% of wealth' towards goal

The Chan Zuckerberg Initiative, the couple's charitable organisation, has been faced with criticism recently for curtailing its other phil anthropic work.

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Earlier this year, it stopped funding grants related to diversity, equity and inclusion, immigration advocacy and other issues in the crosshairs of the Donald Trump administration – though the focus has been shifting to science and away from social issues for years, the couple says, long before the 2024 election.

“So we basically looked at the ecosystem of science funding and decided that the place that we can make the biggest impact was on tool development,” Zuckerberg said.