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Users of X, formerly known as Twitter, will no longer be able to block comments from unwanted followers, according to a post by X owner Elon Musk on Friday, eliminating what’s long been viewed as a key safety feature. Blocking will only be available for direct messages, he said.

“Block is going to be deleted as a ‘feature’, except for DMs,” Musk wrote Friday. He was responding to a post from the account of Tesla Owners Silicon Valley, asking, “Is there ever a reason to block vs mute someone?” The group behind that account promotes the electric car company, where Musk is CEO.

Since acquiring Twitter last year for $44 billion, Musk has overhauled the company, laying off many employees, reinstating previously banned accounts and recently rebranding the company and platform as X. He didn’t provide a reason or a time frame for eliminating the block function, only saying in a follow-up response that “it makes no sense” and that the mute function will still be available.

Users have been able to use the block function to make sure that hateful content and harassment doesn’t show up in their feed in response to their posts. The mute feature just keeps the individual user from seeing the undesired responses, but doesn’t eliminate them from others’ feeds.

Twitter users have also long employed the block feature in boycotts and to avoid seeing ads from specific brands or promoters on the platform.

Binance CEO Changpeng Zhao, an investor in the new Twitter alongside Musk, said in a post that the company should focus its attention elsewhere.

“X should really solve the bots & spam problems before removing blocks,” wrote Zhao, whose company owns one of the world’s largest crypto exchanges. “Just my 0.02.”

— CNBC’s Lora Kolodny contributed to this report.

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China’s Baidu says it’s running 250,000 robotaxis a week — same as Alphabet’s Waymo did this spring

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China's Baidu says it's running 250,000 robotaxis a week — same as Alphabet's Waymo did this spring

Chinese tech company Baidu announced Monday it can sell some robotaxi rides without any human staff in the vehicles.

Baidu

BEIJING — As Baidu ramps up its robotaxi operations worldwide, fully driverless weekly rides as of Oct. 31 have now surpassed 250,000 orders, according to a spokesperson for the company’s driverless car unit Apollo Go.

That’s on par with what Waymo reported in late April for its weekly paid U.S. rides. When contacted by CNBC, Waymo did not have a new specific figure to share. The Alphabet-backed robotaxi operator primarily operates in San Francisco and Los Angeles in California and Phoenix, Arizona. Waymo partners with Uber in Austin and Atlanta.

The ramp up in Baidu’s robotaxi capabilities comes as Chinese and U.S. companies have been competing for leadership in advanced technology, including artificial intelligence, electric cars and autonomous driving.

It was not clear for how long Apollo Go has been operating 250,000 rides a week. For the quarter ended June 30, the company averaged about 169,000 rides a week based on CNBC calculations of the 2.2 million fully driverless robotaxi rides disclosed for the period.

Baidu’s Apollo Go primarily operates robotaxis in Wuhan and parts of Beijing, Shanghai and Shenzhen in mainland China. The company is also expanding to Hong Kong, Dubai, Abu Dhabi and, most recently, Switzerland. Robotaxis typically must undergo phases of public testing before local regulators allow companies to charge fares.

Apollo Go said it has received 17 million robotaxi ride orders to date, and that its cars have driven 240 million kilometers (149 miles), with 140 million fully driverless rides.

Phoenix Mayor Kate Gallego on being first to take the robotaxi risk

On safety, Apollo Go disclosed on average there has been one airbag deployment incident for every 10.1 million kilometers driven, but so far there’s has not been any major accident involving human injury or death.

Baidu is scheduled to next release its quarterly results on Nov. 18 before U.S. market open. The company is set to hold its annual tech conference in Beijing on Nov. 13.

Weekly robotaxi figures from Chinese rivals Pony.ai and WeRide were not immediately available. Waymo did not immediately respond to a request for an update to the figures shared in April.

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CNBC Daily Open: AI trade frenzy seems driven by a ‘virtuous’ cycle

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CNBC Daily Open: AI trade frenzy seems driven by a 'virtuous' cycle

Jensen Huang, CEO of Nvidia, attends a press conference after the 2025 Asia-Pacific Economic Cooperation (APEC) CEO Summit in Gyeongju, South Korea, October 31, 2025.

Kim Soo-hyeon | Reuters

Traders who shorted the S&P 500 — essentially, betting that it would go down — last month were in for a rude surprise. The broad-based index ended the month 2.3% higher, defying “Octoberphobia,” a term that arose because of the market crashes in 1929 and 1987 that happened during the month.

The Nasdaq Composite had an even better month than the S&P 500. The tech-heavy index climbed 4.7%, giving a hint of what helped ward off the arrival of any ill omens: the technology sector.

On Friday, Amazon shares popped 9.6% on robust growth in its cloud-computing unit and as CEO Andy Jassy pointed to “strong demand in AI and core infrastructure.” The news pushed up other artificial intelligence-related stocks such as Palantir and Oracle too.

AI’s ascent in the market wasn’t a one-day event. In October, Nvidia, the poster child of AI, became the first company to reach a valuation of $5 trillion, with CEO Jensen Huang describing the technology as having formed a “virtuous cycle” in which usage growth will lead to an increase in investment, in turn improving AI, which will boost usage, which will… You get the idea.

Indeed, during their earnings disclosures last week, Big Tech companies announced dizzying increases in their capital expenditure, most of which will likely go toward AI infrastructure.

All that is to say that the enthusiasm over AI looks, for now, less like the immediate sugar rush of a candy bar (and the subsequent crash), and more like the sustained energy boost from a fiber-rich pumpkin.

What you need to know today

And finally…

Meta CEO Mark Zuckerberg wears the Meta Ray-Ban Display glasses, as he delivers a speech presenting the new line of smart glasses, during the Meta Connect event at the company’s headquarters in Menlo Park, California, U.S., Sept. 17, 2025.

Carlos Barria | Reuters

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Why the ‘Mag 7 is too much of the market, get out’ is money-losing, false narrative

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Why the 'Mag 7 is too much of the market, get out' is money-losing, false narrative

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