The most idealistic thinkers see the plan as a way to foster the sort of quasi-utopian future we’ve only encountered in science fiction universes like that of “Star Trek.” As computers perform more of our work, we’d all be free to become artists, scholars, entrepreneurs or otherwise engage our passions in a society no longer centered on the drudgery of daily labor.

“We’re talking about divorcing your basic needs from the need to work,” said Albert Wenger, a venture capitalist at Union Square Ventures, a proponent who is working on a book about U.B.I. “For a couple hundred years, we’ve constructed our entire world around the need to work. Now we’re talking about more than just a tweak to the economy — it’s as foundational a departure as when we went from an agrarian society to an industrial one.”

Sam Altman, president of the tech incubator Y Combinator, recently proposed to fund research into U.B.I. The firm has received thousands of applications for research funding, Mr. Altman said; it plans to select winning recipients within a few weeks, and ultimately Y Combinator plans to spend “tens of millions” of dollars on research to answer some of the most basic questions about life under U.B.I.

Mr. Altman said these questions range from the most practical — how much U.B.I. would cost the country, and whether we could afford it — to deeper issues concerning people’s motivation and purpose in what you might call a “postwork” age.

When you give everyone free money, what do people do with their time? Do they goof off, or do they try to pursue more meaningful pursuits? Do they become more entrepreneurial? How would U.B.I. affect economic inequality? How would it alter people’s psychology and mood? Do we, as a species, need to be employed to feel fulfilled, or is that merely a legacy of postindustrial capitalism?

There is an urgency to the techies’ interest in U.B.I. They argue that machine intelligence reached an inflection point in the last couple of years, and that technological progress now looks destined to change how most of the world works.