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X, the social media company formerly known as Twitter, could lose as much as $75 million in advertising revenue by the end of the year as dozens of major brands pause their marketing campaigns after its owner, Elon Musk, endorsed an antisemitic conspiracy theory this month.Internal documents viewed by The New York Times this week show that the company is in a more difficult position than previously known and that concerns about Mr. Musk and the platform have spread far beyond companies including IBM, Apple and Disney, which paused their advertising campaigns on X last week. The documents list more than 200 ad units of companies from the likes of Airbnb, Amazon, Coca-Cola and Microsoft, many of which have halted or are considering pausing their ads on the social network.The documents come f...

Es muy probable que en poco tiempo los enjambres de drones asesinos sean una característica estándar de los campos de batalla de todo el mundo. Esto ha impulsado el debate sobre si se debe —y cómo— regular su uso y ha generado preocupaciones sobre la posibilidad de que las decisiones de vida o muerte al final sean transferidas a programas de inteligencia artificial (IA).A continuación, ofrecemos una descripción general de cómo ha evolucionado la tecnología, qué tipos de armas se están desarrollando y cómo ha progresado el debate.¿Qué tan nuevas son estas armas?Con el tiempo, es muy probable que la IA permita que los sistemas de armas tomen sus propias decisiones sobre la selección de ciertos tipos de objetivos y su ataque. Los recientes avances en la tecnología de IA han intensificado el d...

One of the strangest episodes in the history of the tech industry ended as start-up events often do: with a party in San Francisco’s eclectic Mission District.Late Tuesday, OpenAI said Sam Altman was returning as its chief executive, five days after the artificial intelligence start-up’s board of directors forced him out. At the company’s San Francisco office, giddy employees snacked on chicken tenders, drank boba tea and champagne, and celebrated Mr. Altman’s return deep into the night.Mr. Altman’s reinstatement capped a corporate drama that mixed piles of money, a pressure campaign from allies, intense media attention and a steadfast belief among some in the A.I. community that they should proceed with caution with what they are building.Now OpenAI, which for two days appeared to be on t...

For much of the past year, OpenAI’s board of directors has been criticized as too small and too divided to effectively govern one of the fastest-growing start-ups in Silicon Valley history.On Friday, the board’s dysfunction spilled into public view when four of its members fired Sam Altman, OpenAI’s popular and powerful chief executive. The dismissal uncorked five turbulent days, as Mr. Altman rallied almost all of the company’s 770 employees to lobby for the board’s resignation and his reinstatement.Mr. Altman, 38, returned to the company on Tuesday night, after days of haggling over his job and over the makeup of the board.The board and Mr. Altman’s allies discussed more than a half dozen options for its future. They considered a board size of three to seven members and discussed about 3...

Before Sam Altman was ousted from OpenAI last week, he and the company’s board of directors had been bickering for more than a year. The tension got worse as OpenAI became a mainstream name thanks to its popular ChatGPT chatbot.At one point, Mr. Altman, the chief executive, made a move to push out one of the board’s members because he thought a research paper she had co-written was critical of the company.Another member, Ilya Sutskever, thought Mr. Altman was not always being honest when talking with the board. And some board members worried that Mr. Altman was too focused on expansion while they wanted to balance that growth with A.I. safety.The news that he was being pushed out came in a videoconference on Friday afternoon, when Mr. Sutskever, who had worked closely with Mr. Altman at Op...

This superhero narrative is the secret engine of just about every book beloved by Silicon Valley entrepreneurs. Travis Kalanick, a founder of Uber, was a devotee of Ayn Rand, whose heroes are at war with society. Jeff Bezos, the founder of Amazon, was a childhood fan of “Star Trek,” where Captain Kirk made every decision and took charge of every landing party. Peter Thiel, the venture capitalist who backed Donald J. Trump in 2016, loves “The Lord of the Rings,” an epic tale where a handful of heroes save the world. Mr. Thiel’s corporate names (Palantir, Mithril, Valar) are taken from the story.Mr. Altman, to his credit, has endorsed a wide reading list that goes beyond books written by his friends in Silicon Valley, like Mr. Thiel. He recommended another Valley favorite, Isaac Asimov’s “Fo...

These are only the latest examples of why the federal government has no viable way to break up with Mr. Musk, at least as long as the United States decides it is going to continue space exploration and deter its biggest superpower rivals. It may denounce him and declare that all Americans should reject his views. But it needs him, or at least his rockets and his satellites, more than ever.And the White House and Pentagon both know that.Rarely has the U.S. government so depended on the technology provided by a single, if petulant, technologist with views that it has so publicly declared repugnant. And yet, by the account of administration officials, they have no choice — and will not for a while. Because there are, right now, few viable alternatives.It is an unusual predicament. If a top ex...

Kyle Vogt, a founder and chief executive of Cruise, the driverless car subsidiary of General Motors, resigned on Sunday, less than a month after Cruise suspended all autonomous operations after a series of traffic mishaps.Mr. Vogt had faced criticism for months as Cruise’s self-driving operations ran into issues in cities such as San Francisco. At various points, Cruise’s autonomous vehicles were involved in accidents, with outrage mounting after one of its cars dragged a pedestrian 20 feet after a crash in October.In a statement, Cruise said that its board had accepted Mr. Vogt’s resignation, but it did not specify what had led to his departure. The company did not name a new chief executive but appointed a new president who also became its chief technology officer and a new vice chairman...

The drones began crashing on Ukraine’s front lines, with little explanation.For months, the aerial vehicles supplied by Quantum Systems, a German technology firm, had worked smoothly for Ukraine’s military, swooping through the air to spot enemy tanks and troops in the country’s war against Russia. Then late last year, the machines abruptly started falling from the sky as they returned from missions.“It was this mystery,” said Sven Kruck, a Quantum executive who received a stern letter from Ukraine’s Ministry of Defense demanding a fix.Quantum’s engineers soon homed in on the issue: Russians were jamming the wireless signals that connected the drones to the satellites they relied on for navigation, leading the machines to lose their way and plummet to earth. To adjust, Quantum developed ar...

Follow updates from the second Starship test launch here.This post was updated on Friday to describe what SpaceX fixed on the rocket.SpaceX is preparing for the second test flight of Starship, the giant rocket that is being built to carry NASA’s astronauts to the surface of the moon and Elon Musk’s ambitions to Mars. The Federal Aviation Administration granted regulatory approval for the launch on Wednesday.While the company had planned for a Friday launch, Mr. Musk announced on Thursday on X, the social network site formerly known as Twitter that he also owns, that SpaceX was moving the flight to Saturday because a part on the rocket needed to be replaced.Here’s what you need to know about the launch.When is the launch, and how can I watch it?Starship launches from Boca Chica, Texas, a si...