• Elon Musk says it's "pointless" to save for the long term, as he expects "super intelligent abundance."
• The Tesla and SpaceX CEO was replying to an X user who said they'd stopped stressing about spending.
• Musk previously said that if he's right about the future, "saving for retirement will be irrelevant."

Elon Musk says it's not worth saving for the long term, as nest eggs won't matter.

"Saving money for the distant future is pointless with the advent of super intelligent abundance," Musk said in an X post on Thursday, doubling down on one of his most polarizing predictions.

The Tesla and SpaceX CEO was replying to a user who said they weren't stressing over their "questionable financial decisions" because a future of abundance meant "most of it won't matter in a few years anyway."

The world's richest person — who has a nearly $1 trillion net worth — has previously advised against saving for decades to come.

"Don't worry about squirreling money away for retirement in 10 or 20 years," Musk said during a podcast episode released in January. "It won't matter."

"If any of the things that we've said are true, saving for retirement will be irrelevant," he added.

Musk said at the time that he expects progress in AI, energy, and robotics to supercharge productivity, resulting in plentiful resources so that "anyone can have whatever stuff they want."

In that world, he continued, everyone would have access to "better medical care than anyone has today," there would be "no scarcity of goods and services," and "you can learn anything you want about anything for free."

Business Insider spoke to seven personal finance and AI experts about those comments, and they all agreed people should keep saving for retirement given the risk that Musk may be wrong.

Musk laid out an even more utopian vision on a recent podcast, predicting that advances in robotics and space travel would lead to a multiplanetary economy, at which point "money becomes irrelevant" and "conventional currency will not matter."

Several other tech leaders have predicted AI and other technologies will transform the way we live.

Microsoft cofounder Bill Gates said on a recent podcast episode that AI will lead to "true abundance" with robots able to "build houses, grow food, do surgery."

But he also warned the next two decades will be "as tumultuous a period as there's been in human history," as technological advances will mean "none of the things that human labor provides to the economy will be necessary for most goods and services."

Similarly, Musk has predicted a "bumpy" transition to a brighter future. He's suggested government checks for all as the best solution to AI-fueled job destruction.

• Nate Soares said he stopped adding to his 401(k) because AI may kill us within a decade.
• The MIRI president said humanity has a more than 50% chance of dying within a decade.
• Elon Musk said AI could make retirement savings irrelevant by creating an age of abundance.

Saving for retirement is a bet on the future. Nate Soares, the president of the Machine Intelligence Research Institute, isn't so sure AI will let us get that far.

"I do not save for retirement right now. I have a 401(k) from when I worked at Google, but I haven't contributed for a decade," Soares told The Atlantic CEO Nicholas Thompson in a recent interview for Thompson's "The Most Interesting Thing in AI" series.

Soares' decision reflects a grim view of the AI race.

"Godfather of AI" Geoffrey Hinton and Anthropic researcher Evan Hubinger have, respectively, put the odds of AI killing everyone within a decade at 10% and more than 10%. Soares is more pessimistic: He told Thompson he believes there is a greater-than-50% chance AI causes human extinction in less than a decade.

Soares, who is also the coauthor of "If Anyone Builds It, Everyone Dies," has spent more than 12 years working on AI alignment, the field focused on ensuring powerful systems act as intended. Before joining MIRI, the Berkeley-based nonprofit focused on AI risks, he worked as an engineer at Google and Microsoft.

Soares said that a sufficiently capable AI could develop goals at odds with humanity's, evade oversight, improve itself, and build the automated infrastructure needed to operate without people.

From there, he said, it could reshape the planet around its own objectives, potentially making it uninhabitable for humans — a warning he shared with Business Insider last year.

A 401(k) for the apocalypse?

The question of how AI will shape the future has also prompted Elon Musk to question whether retirement savings will matter. Musk's vision of the future, however, is radically different than Soares'.

In January, the Tesla and SpaceX CEO said people should not worry about "squirreling money away for retirement" in 10 or 20 years, predicting advances in AI, robotics, and energy will make retirement savings "irrelevant." (Personal finance experts and AI gurus told Business Insider the opposite: You really should be saving for retirement.)

Musk has said that supercharged productivity could create an age of abundance, in which everyone has access to a "universal high income," cheap goods and services, and better healthcare and education.

Musk has also said money could become irrelevant in a future where AI and robots outperform humans at virtually every task.

For Soares, the prospect of a vastly capable AI is an existential danger, not a route to plenty.

Echoing calls from tech leaders to "pace the frontier" of AI development, Soares said governments should halt the training of general-purpose AI systems. They should focus on developing technology for applications like cancer research and safer self-driving cars, he said.

The solution, he told Thompson on Wednesday, "is to not build the thing that would kill everybody."

"I do everything I can to stop this eventuality," he said. "I don't think it's inevitable."