Universal basic income has gone from utopian vision to economic reality. Here's what you need to know about UBI.

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• Universal basic income is quickly evolving from a fantastical idea into economic reality.
• Several countries are testing it and figures like Elon Musk and MrBeast have endorsed the concept.
• Here's an in-depth look at UBI, its origins, and its major benefits and costs.

Universal basic income has made giant strides from its origins as a utopian vision toward becoming economic reality.