Good morning. We're covering a shock to tech stocks and the long journey home for thousands of displaced Gazans. Plus: Is it time to worry about bird flu?
China's A.I. advances spook Big Tech investorsA.I. advances by Chinese upstarts rattled U.S. markets yesterday, wiping hundreds of billions of dollars from the leading tech indexes. Falling tech stocks also dented market indexes in Europe and Japan, and the dollar slipped against the currencies of major U.S. trading partners. The slide came days after the Chinese A.I. company DeepSeek said it could match the abilities of cutting-edge chatbots while using a fraction of the specialized computer chips that leading A.I. companies rely on. The news prompted investors to rethink the valuations of companies like Nvidia, whose equipment powers the most advanced A.I. systems. (Here's what to know about DeepSeek.) The overall tech sector of the S&P 500 has had a rocky start to the year, losing about 4 percent of its value, while every other major sector has gained over the same period. Because of the tech industry's size and influence, this has weighed on the S&P 500 index, which is up about 2 percent for the year. Big Tech: Shares of Microsoft and Alphabet, Google's parent company, both of which have bet heavily on A.I., fell yesterday by 2.1 percent and 4.2 percent, respectively. Oracle dropped almost 14 percent. SoftBank shed more than 8 percent during trading in Tokyo. Meta and Apple bucked the trend, posting gains. Nvidia: Shares of the chip company plunged 17 percent, and the company lost roughly $600 billion in market value, on what was its worst trading day since the pandemic sell-off in March 2020.
Joyful but anxious, Gazans headed for homeThousands of displaced Palestinians yesterday began the painful trek home after months of displacement. Some wore flip-flops; others trudged with toddlers in their arms and mattresses over their shoulders. One young boy dragged his possessions on a sled. For nearly 16 months, hundreds of thousands of Palestinians from northern Gaza have lived in tents, barred by Israel from returning home after being driven south by the military offensive against Hamas. Yesterday, shortly after sunrise, some were permitted to begin the journey back after the Israeli military finally withdrew from Gaza's coastal road. It was a moment steeped in symbolism for Palestinians, who have been defined by repeated displacement and exile since the foundation of Israel in 1948, when hundreds of thousands of their ancestors were expelled or fled from their homes. On the ground: The people in transit formed a human column that stretched as far as the eye could see — miles in length and some 20 people abreast. Rarely has such an uncomfortable journey felt like such relief. "We're so overjoyed," one student said. From the region:
Mapping Trump's rapid escalation tacticsPresident Trump's first head-to-head confrontation with a Latin American ally — a blowup over deportation flights to Colombia — was resolved in roughly 12 hours, with a complete retreat by Colombia's president, Gustavo Petro. The success of Trump's threat to impose crushing tariffs may inform how the president approaches future disputes, including with Denmark, from which he wishes to take over Greenland, and Panama, where Secretary of State Marco Rubio is supposed to land in a few days to demand control of the Panama Canal. The clash suggested that Trump was ready to make an example of Colombia as countries around the world grapple with how to prepare for the mass deportations he has promised. Help wanted: Amid threats and tensions, nations including Denmark and Panama have sought out lobbyists with ties to the new president. Other news from the Trump administration:
Bird flu has entered a dangerous new phase. A human pandemic is not inevitable, scientists say, but the outbreak has recently passed worrisome milestones. "I'm still not pack-my-bags-and-head-to-the-hills worried," one influenza expert said, "but there's been more signals over the past four to six weeks." Lives lived: Arthur Blessitt, a street preacher from Hollywood who carried a 110-pound cross on his back for 43,340 miles, through every country on the planet, has died at 84.
Electrifying AfricaThe leaders of more than half of Africa's nations this week are committing to the biggest burst of spending on electric-power generation in African history — at least $35 billion to expand electricity across a continent where more than a half-billion people still don't have it. "Without electricity, we can't get jobs, health care, skills," said Ajay Banga, the president of the World Bank. The success of electrification, he added, is "foundational to everything." But despite the political will behind the effort, many in Africa's power sector are deeply skeptical. Recently, a major U.S. maker of solar minigrids tried to go into business in Tanzania. When it closed up shop, thousands were left powerless and frustrated. Read more about the summit in Tanzania. We hope you've enjoyed this newsletter, which is made possible through subscriber support. Subscribe to The New York Times.
Cook: Make delicious chili oil wontons for Lunar New Year. (Here are more of our favorite dumpling recipes.) Travel: Let a writer and his daughter be your guide to a wintry Venice. Train: These are the best bang-for-your-buck full-body exercises, according to trainers. Quiz: Test your knowledge of popular books that have been made into movies. Play the Spelling Bee. And here are today's Mini Crossword and Wordle. You can find all our puzzles here. That's it for today's briefing. See you tomorrow. — Natasha Reach Natasha and the team at briefing@nytimes.com.
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