Comment on BookWatch: India can teach the U.S. to slash health-care costs by 40% — without rationing care

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ChatGPT, Tyler Le/BIChatGPT was first released two years ago. Since then, its user base has doubled to 200 million weekly users. Major companies, entrepreneurs, and users remain optimistic about its transformative power. It's been two years since OpenAI released its flagship chatbot, ChatGPT. And a lot has changed in the world since then.

President-elect Donald Trump is pushing back against any effort to undermine the US dollar. Andrew Harnik/Getty ImagesTrump on Saturday floated "100% tariffs" on the BRICS group of emerging markets. Trump is pushing back on efforts to dethrone the US dollar as the primary global reserve currency. Trump's remarks come as the BRIC nations seek to flex their economic strength on the global stage.

When you buy through our links, Business Insider may earn an affiliate commission. Learn moreHulu's Cyber Monday deals offer up to 90% off. Praneat via Getty Images; Business InsiderThe Hulu Cyber Monday deals have the most savings any streaming service is offering this year, and there are still a few days left to cash in.

When you buy through our links, Business Insider may earn an affiliate commission. Learn moreLego/Business InsiderMany of the best Black Friday deals continue into the weekend, including Lego, so there's still time to stock up. Whether it's Duplo for youngsters, Star Wars for the franchise's most die-hard fans, or elaborate builds that take hours, there's sure to be a Lego set to suit any kid or kid-at-heart on your wishlist.

Boeing grounded its fleet of Challenger 650 business jets for top executives.credit should read JOHANNES EISELE/AFP via Getty ImagesBoeing's CEO is cutting private jet use for executives to reduce costs. The company directed executives to fly economy on commercial flights instead. Boeing is searching for ways to save money after a rough year.