Jimmy "MrBeast" Donaldson.Alberto E. Rodriguez/Getty ImagesMrBeast shot to fame for giving life-changing amounts of money to complete strangers.The YouTube star has turned that approach into financing and fundraising for UBI programs in Uganda.His Beast Philanthropy organization donated $200,000 to help people buy basics or start a business.MrBeast became the most popular YouTuber on the planet by handing cash to strangers, so it's little wonder he's experimenting with universal basic income, known as UBI.Jimmy Donaldson, who goes by MrBeast and has around 288 million subscribers to his flagship channel, has partnered with GiveDirectly to help people living in extreme poverty in Uganda.Between them, they delivered $1,000 to around 300 households.